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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1706.00693 | David Crouse | David Crouse, Joseph Skufca | Relativistic Time Dilation and Length Contraction in Discrete Space-Time
using a Modified Distance Formula | This paper is duplicated in a much more thorough paper of ours (paper
ID# arXiv:1803.03126) on arxiv. Again, please see paper arXiv:1803.03126 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, the relativistic phenomena of Lorentz contraction and time
dilation are derived using a modified distance formula appropriate for discrete
space. This new distance formula is different than Pythagoras's theorem but
converges to it for distances large relative to the Planck length. First, four
candidate ... | [
{
"created": "Thu, 1 Jun 2017 16:29:09 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Oct 2018 16:24:04 GMT",
"version": "v2"
}
] | 2018-10-10 | [
[
"Crouse",
"David",
""
],
[
"Skufca",
"Joseph",
""
]
] | In this work, the relativistic phenomena of Lorentz contraction and time dilation are derived using a modified distance formula appropriate for discrete space. This new distance formula is different than Pythagoras's theorem but converges to it for distances large relative to the Planck length. First, four candidate fo... |
1909.01275 | Shuxuan Ying | Peng Wang, Haitang Yang, Shuxuan Ying | Thermodynamics and Phase Transition of a Gauss-Bonnet Black Hole in a
Cavity | 15 pages, 12 figures | Phys. Rev. D 101, 064045 (2020) | 10.1103/PhysRevD.101.064045 | CTP-SCU/2019017 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Considering a canonical ensemble, in which the temperature and the charge on
a wall of the cavity are fixed, we investigate the thermodynamics of a
D-dimensional Gauss-Bonnet black hole in a finite spherical cavity. Moreover,
it shows that the first law of thermodynamics is still satisfied. We then
discuss the phase ... | [
{
"created": "Tue, 3 Sep 2019 16:14:23 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Sep 2019 17:30:27 GMT",
"version": "v2"
}
] | 2020-03-25 | [
[
"Wang",
"Peng",
""
],
[
"Yang",
"Haitang",
""
],
[
"Ying",
"Shuxuan",
""
]
] | Considering a canonical ensemble, in which the temperature and the charge on a wall of the cavity are fixed, we investigate the thermodynamics of a D-dimensional Gauss-Bonnet black hole in a finite spherical cavity. Moreover, it shows that the first law of thermodynamics is still satisfied. We then discuss the phase st... |
1911.05793 | Thiago Pereira | Mikjel Thorsrud, Ben D. Normann, Thiago S. Pereira | Extended FLRW Models: dynamical cancellation of cosmological
anisotropies | 31 pages, 2 figures; v2: minor amendments to match the version
published in CQG | Class. Quantum Grav. 37 (2020) 065015 | 10.1088/1361-6382/ab6f7f | null | gr-qc astro-ph.CO hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate a corner of the Bianchi models that has not received much
attention: "extended FLRW models" (eFLRW) defined as a cosmological model with
underlying anisotropic Bianchi geometry that nevertheless expands isotropically
and can be mapped onto a reference FLRW model with the same expansion history.
In orde... | [
{
"created": "Wed, 13 Nov 2019 20:06:48 GMT",
"version": "v1"
},
{
"created": "Thu, 20 Feb 2020 18:15:50 GMT",
"version": "v2"
}
] | 2020-02-21 | [
[
"Thorsrud",
"Mikjel",
""
],
[
"Normann",
"Ben D.",
""
],
[
"Pereira",
"Thiago S.",
""
]
] | We investigate a corner of the Bianchi models that has not received much attention: "extended FLRW models" (eFLRW) defined as a cosmological model with underlying anisotropic Bianchi geometry that nevertheless expands isotropically and can be mapped onto a reference FLRW model with the same expansion history. In order ... |
gr-qc/0610144 | David Kubiznak | David Kubiznak, Valeri P. Frolov | Hidden Symmetry of Higher Dimensional Kerr-NUT-AdS Spacetimes | 4 pages, some discussion and references are added | Class.Quant.Grav.24:F1-F6,2007 | 10.1088/0264-9381/24/3/F01 | Alberta-Thy-10-06 | gr-qc hep-th | null | It is well known that 4-dimensional Kerr-NUT-AdS spacetime possesses the
hidden symmetry associated with the Killing-Yano tensor. This tensor is
"universal" in the sense that there exist coordinates where it does not depend
on any of the free parameters of the metric. Recently the general higher
dimensional Kerr-NUT-... | [
{
"created": "Sat, 28 Oct 2006 06:56:49 GMT",
"version": "v1"
},
{
"created": "Thu, 28 Dec 2006 06:02:38 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Kubiznak",
"David",
""
],
[
"Frolov",
"Valeri P.",
""
]
] | It is well known that 4-dimensional Kerr-NUT-AdS spacetime possesses the hidden symmetry associated with the Killing-Yano tensor. This tensor is "universal" in the sense that there exist coordinates where it does not depend on any of the free parameters of the metric. Recently the general higher dimensional Kerr-NUT-Ad... |
2110.15643 | Vegard Undheim Mr. | Vegard Undheim | First post-Newtonian correction to gravitational waves produced by
compact binaries: How to compute relativistic corrections to gravitational
waves using Feynman diagrams | Master's thesis, 101 pages. Supervised by Alex B. Nielsen and Jens O.
Andersen | null | null | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | The purpose of this thesis is to calculate the relativistic correction to the
gravitational waves produced by compact binaries in the inspiral phase. The
correction is up to the next to leading order, the so-called first
post-Newtonian order (1PN), which are correctional terms proportional to
$(v/c)^2$ compared to le... | [
{
"created": "Fri, 29 Oct 2021 09:33:32 GMT",
"version": "v1"
},
{
"created": "Fri, 23 Sep 2022 08:27:41 GMT",
"version": "v2"
}
] | 2022-09-26 | [
[
"Undheim",
"Vegard",
""
]
] | The purpose of this thesis is to calculate the relativistic correction to the gravitational waves produced by compact binaries in the inspiral phase. The correction is up to the next to leading order, the so-called first post-Newtonian order (1PN), which are correctional terms proportional to $(v/c)^2$ compared to lead... |
2405.01297 | Cyril Pitrou | Giulia Cusin, Cyril Pitrou, Camille Bonvin, Aur\'elien Barrau, Killian
Martineau | Boosting gravitational waves: a review of kinematic effects on
amplitude, polarization, frequency and energy density | 38 pages, 5 figures | null | null | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review the kinematic effects on a gravitational wave due to either a
peculiar motion of the astrophysical source emitting it or a local motion of
the observer. We show, at fully non-linear order in velocity, that the
amplitude of the wave is amplified by the Doppler factor in the case in which
the source moves wit... | [
{
"created": "Thu, 2 May 2024 14:00:00 GMT",
"version": "v1"
}
] | 2024-05-06 | [
[
"Cusin",
"Giulia",
""
],
[
"Pitrou",
"Cyril",
""
],
[
"Bonvin",
"Camille",
""
],
[
"Barrau",
"Aurélien",
""
],
[
"Martineau",
"Killian",
""
]
] | We review the kinematic effects on a gravitational wave due to either a peculiar motion of the astrophysical source emitting it or a local motion of the observer. We show, at fully non-linear order in velocity, that the amplitude of the wave is amplified by the Doppler factor in the case in which the source moves with ... |
2309.12478 | Shahram Jalalzadeh | P. F. da Silva Junior, E. W. de Oliveira Costa, and S. Jalalzadeh | Emergence of fractal cosmic space from fractional quantum gravity | 20 pages, 1 figure, to appear in Eur. Phys. J. Plus | Eur. Phys. J. Plus 138, 862 (2023) | 10.1140/epjp/s13360-023-04506-z | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | Based on Padmanabhan's theory, the spatial expansion of the Universe can be
explained by the emergence of space as cosmic time progresses. To further
explore this idea, we have developed fractional-fractal Friedmann and
Raychaudhuri equations for an isotropic and homogeneous universe. Our analysis
has also delved int... | [
{
"created": "Thu, 21 Sep 2023 20:49:56 GMT",
"version": "v1"
}
] | 2023-09-29 | [
[
"Junior",
"P. F. da Silva",
""
],
[
"Costa",
"E. W. de Oliveira",
""
],
[
"Jalalzadeh",
"S.",
""
]
] | Based on Padmanabhan's theory, the spatial expansion of the Universe can be explained by the emergence of space as cosmic time progresses. To further explore this idea, we have developed fractional-fractal Friedmann and Raychaudhuri equations for an isotropic and homogeneous universe. Our analysis has also delved into ... |
gr-qc/9801088 | Masayuki Tanimoto | Masayuki Tanimoto | New varieties of Gowdy spacetimes | 13 pages with no figure. A reference added, and typos corrected. To
appear in J.Math.Phys | J.Math.Phys. 39 (1998) 4891-4898 | 10.1063/1.532497 | null | gr-qc | null | Gowdy spacetimes are generalized to admit two commuting spatial "local"
Killing vectors, and some new varieties of them are presented, which are all
closely related to Thurston's geometries. Explicit spatial compactifications,
as well as the boundary conditions for the metrics are given in a systematic
way. A short c... | [
{
"created": "Tue, 27 Jan 1998 11:27:23 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Jun 1998 00:12:29 GMT",
"version": "v2"
}
] | 2015-06-25 | [
[
"Tanimoto",
"Masayuki",
""
]
] | Gowdy spacetimes are generalized to admit two commuting spatial "local" Killing vectors, and some new varieties of them are presented, which are all closely related to Thurston's geometries. Explicit spatial compactifications, as well as the boundary conditions for the metrics are given in a systematic way. A short com... |
1710.11294 | Nishanth Abu Gudapati | Nishanth Gudapati | A Positive-Definite Energy Functional for Axially Symmetric Maxwell's
Equations on Kerr-de Sitter Black Hole Spacetimes | Journal version | C. R. Math. Rep. Acad. Sci. Canada Vol. 40 (2) 2018, pp. 39-54 | null | null | gr-qc math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove that there exists a phase space of canonical variables for the
initial value problem for axially symmetric Maxwell fields propagating in
Kerr-de Sitter black hole spacetimes such that their motion is restricted to
the level sets of a positive-definite Hamiltonian, despite the ergo-region.
| [
{
"created": "Tue, 31 Oct 2017 01:52:24 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Jul 2018 17:21:41 GMT",
"version": "v2"
}
] | 2018-07-23 | [
[
"Gudapati",
"Nishanth",
""
]
] | We prove that there exists a phase space of canonical variables for the initial value problem for axially symmetric Maxwell fields propagating in Kerr-de Sitter black hole spacetimes such that their motion is restricted to the level sets of a positive-definite Hamiltonian, despite the ergo-region. |
1806.00742 | Richard Woodard | S. P. Miao (NCKU), T. Prokopec (Utrecht) and R. P. Woodard (Florida) | The Graviton Tail almost Completely Wags the Dog | 17 pages, 1 figure, uses LaTeX2e | Phys. Rev. D 98, 025022 (2018) | 10.1103/PhysRevD.98.025022 | UFIFT-QG-18-02 | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | One graviton loop corrections to the vacuum polarization on de Sitter show
two interesting infrared effects: a secular enhancement of the photon electric
field strength and a long range running of the Coulomb potential. We show that
the first effect derives solely from the "tail" term of the graviton
propagator, but ... | [
{
"created": "Sun, 3 Jun 2018 06:48:02 GMT",
"version": "v1"
}
] | 2018-08-01 | [
[
"Miao",
"S. P.",
"",
"NCKU"
],
[
"Prokopec",
"T.",
"",
"Utrecht"
],
[
"Woodard",
"R. P.",
"",
"Florida"
]
] | One graviton loop corrections to the vacuum polarization on de Sitter show two interesting infrared effects: a secular enhancement of the photon electric field strength and a long range running of the Coulomb potential. We show that the first effect derives solely from the "tail" term of the graviton propagator, but th... |
gr-qc/9907078 | Moshe Carmeli | Moshe Carmeli (Ben Gurion U.) and Shimon Malin (Colgate U.) | SL(2,C) Gauge Theory of Gravitation and the Quantization of the
Gravitational Field | 6 pages, published in Intern. j. Theor. Phys. Vol. 37, No. 10,
pp.2615-2620 (1998) | Int.J.Theor.Phys. 37 (1998) 2615-2620 | null | null | gr-qc hep-th math-ph math.MP | null | A new approach to quantize the gravitational field is presented. It is based
on the observation that the quantum character of matter becomes more
significant as one gets closer to the big bang. As the metric loses its
meaning, it makes sense to consider Schrodinger's three generic types of
manifolds - unconnected dif... | [
{
"created": "Sun, 25 Jul 1999 06:23:19 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Carmeli",
"Moshe",
"",
"Ben Gurion U."
],
[
"Malin",
"Shimon",
"",
"Colgate U."
]
] | A new approach to quantize the gravitational field is presented. It is based on the observation that the quantum character of matter becomes more significant as one gets closer to the big bang. As the metric loses its meaning, it makes sense to consider Schrodinger's three generic types of manifolds - unconnected diffe... |
1502.01907 | Emma Jakobsson | Ingemar Bengtsson and Emma Jakobsson | Black holes: Their large interiors | 6 pages, 2 figures. To appear in Modern Physics Letters A | Mod. Phys. Lett. A, Vol. 30, No. 21 (2015) 1550103 | 10.1142/S0217732315501035 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Christodoulou and Rovelli have remarked on the large interiors possessed by
static black holes. We amplify their remarks, and extend them to the spinning
case.
| [
{
"created": "Fri, 6 Feb 2015 14:51:40 GMT",
"version": "v1"
},
{
"created": "Fri, 20 Mar 2015 15:32:31 GMT",
"version": "v2"
}
] | 2015-08-19 | [
[
"Bengtsson",
"Ingemar",
""
],
[
"Jakobsson",
"Emma",
""
]
] | Christodoulou and Rovelli have remarked on the large interiors possessed by static black holes. We amplify their remarks, and extend them to the spinning case. |
gr-qc/0302053 | Gaetano Lambiase | G. Lambiase | Spin Flavor Conversion of Neutrinos in Loop Quantum Gravity | 7 pages, no figure | Class.Quant.Grav. 20 (2003) 4213-4220 | 10.1088/0264-9381/20/19/306 | null | gr-qc hep-ph | null | Loop quantum gravity theory incorporates a new scale length ${\cal L}$ which
induces a Lorentz invariance breakdown. This scale can be either an universal
constant or can be fixed by the momentum of particles (${\cal L}\sim p^{-1}$).
Effects of the scale parameter ${\cal L}$ and helicity terms occurring in the
disper... | [
{
"created": "Thu, 13 Feb 2003 13:49:15 GMT",
"version": "v1"
}
] | 2016-08-31 | [
[
"Lambiase",
"G.",
""
]
] | Loop quantum gravity theory incorporates a new scale length ${\cal L}$ which induces a Lorentz invariance breakdown. This scale can be either an universal constant or can be fixed by the momentum of particles (${\cal L}\sim p^{-1}$). Effects of the scale parameter ${\cal L}$ and helicity terms occurring in the dispersi... |
1412.6789 | Raissa Mendes | Raissa F. P. Mendes | On the possibility of setting a new constraint to scalar-tensor theories | 8 pages, 4 figures; matches published version | PRD 91, 064024 (2015) | 10.1103/PhysRevD.91.064024 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Scalar-tensor theories (STTs) are a widely studied alternative to General
Relativity (GR) in which gravity is endowed with an additional scalar degree of
freedom. Although severely constrained by solar system and pulsar timing
experiments, there remains a large set of STTs which are consistent with all
present day ob... | [
{
"created": "Sun, 21 Dec 2014 14:30:19 GMT",
"version": "v1"
},
{
"created": "Thu, 12 Mar 2015 17:41:45 GMT",
"version": "v2"
}
] | 2015-03-13 | [
[
"Mendes",
"Raissa F. P.",
""
]
] | Scalar-tensor theories (STTs) are a widely studied alternative to General Relativity (GR) in which gravity is endowed with an additional scalar degree of freedom. Although severely constrained by solar system and pulsar timing experiments, there remains a large set of STTs which are consistent with all present day obse... |
gr-qc/9710037 | Luc Blanchet | Luc Blanchet | Quadrupole-quadrupole gravitational waves | contains 3 files: a tex file grq97quad.tex and 2 latex files for the
tables: tabbquad.tex and 2tabbqua.tex, to appear in Classical and Quantum
Gravity | Class.Quant.Grav. 15 (1998) 89-111 | 10.1088/0264-9381/15/1/008 | null | gr-qc | null | This paper investigates the non-linear self-interaction of quadrupole
gravitational waves generated by an isolated system. The vacuum Einstein field
equations are integrated in the region exterior to the system by means of a
post-Minkowskian algorithm. Specializing in the quadrupole-quadrupole
interaction (at the qua... | [
{
"created": "Tue, 7 Oct 1997 09:44:22 GMT",
"version": "v1"
}
] | 2009-10-30 | [
[
"Blanchet",
"Luc",
""
]
] | This paper investigates the non-linear self-interaction of quadrupole gravitational waves generated by an isolated system. The vacuum Einstein field equations are integrated in the region exterior to the system by means of a post-Minkowskian algorithm. Specializing in the quadrupole-quadrupole interaction (at the quadr... |
1504.01266 | Tim Dietrich | Tim Dietrich, Sebastiano Bernuzzi, Maximiliano Ujevic, Bernd Bruegmann | Numerical relativity simulations of neutron star merger remnants using
conservative mesh refinement | 26 pages, 18 figures | Phys. Rev. D 91, 124041 (2015) | 10.1103/PhysRevD.91.124041 | null | gr-qc astro-ph.HE astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study equal and unequal-mass neutron star mergers by means of new
numerical relativity simulations in which the general relativistic
hydrodynamics solver employs an algorithm that guarantees mass conservation
across the refinement levels of the computational mesh. We consider eight
binary configurations with total... | [
{
"created": "Mon, 6 Apr 2015 11:34:31 GMT",
"version": "v1"
}
] | 2015-06-17 | [
[
"Dietrich",
"Tim",
""
],
[
"Bernuzzi",
"Sebastiano",
""
],
[
"Ujevic",
"Maximiliano",
""
],
[
"Bruegmann",
"Bernd",
""
]
] | We study equal and unequal-mass neutron star mergers by means of new numerical relativity simulations in which the general relativistic hydrodynamics solver employs an algorithm that guarantees mass conservation across the refinement levels of the computational mesh. We consider eight binary configurations with total m... |
1912.13128 | Vasilis Oikonomou | Shin'ichi Nojiri, Sergei D. Odintsov, V.K. Oikonomou | Unifying Inflation with Early and Late-time Dark Energy in $F(R)$
Gravity | Revised Version, PDU Accepted | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work we shall present models of $F(R)$ gravity which realize in a
unified way the inflationary era along with a post-inflationary early dark
energy era, with the late-time dark energy era. We shall use two approach
methods in order to realize the unified cosmological eras, firstly we specify a
Hubble rate whi... | [
{
"created": "Tue, 31 Dec 2019 00:50:46 GMT",
"version": "v1"
},
{
"created": "Tue, 26 May 2020 15:52:50 GMT",
"version": "v2"
}
] | 2020-05-27 | [
[
"Nojiri",
"Shin'ichi",
""
],
[
"Odintsov",
"Sergei D.",
""
],
[
"Oikonomou",
"V. K.",
""
]
] | In this work we shall present models of $F(R)$ gravity which realize in a unified way the inflationary era along with a post-inflationary early dark energy era, with the late-time dark energy era. We shall use two approach methods in order to realize the unified cosmological eras, firstly we specify a Hubble rate which... |
2305.10815 | Mert Mangut | M. Mangut, H. G\"ursel, S. Kanzi and \.I. Sakall{\i} | Probing the Lorentz Invariance Violation via Gravitational Lensing and
Analytical Eigenmodes of Perturbed Slowly Rotating Bumblebee Black Holes | null | Universe, 2023 | 10.3390/universe9050225 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The ability of bumblebee gravity models to explain dark energy, which is the
phenomenon responsible for the universe's observed accelerated expansion, is
one of their most significant applications. An effect that causes faster
expansion can be linked to how much the Lorentz symmetry of our universe is
violated. Moreo... | [
{
"created": "Thu, 18 May 2023 08:52:11 GMT",
"version": "v1"
}
] | 2023-05-19 | [
[
"Mangut",
"M.",
""
],
[
"Gürsel",
"H.",
""
],
[
"Kanzi",
"S.",
""
],
[
"Sakallı",
"İ.",
""
]
] | The ability of bumblebee gravity models to explain dark energy, which is the phenomenon responsible for the universe's observed accelerated expansion, is one of their most significant applications. An effect that causes faster expansion can be linked to how much the Lorentz symmetry of our universe is violated. Moreove... |
2302.08812 | Sergi Nadal-Gisbert | Sergi Nadal-Gisbert, Jos\'e Navarro-Salas and Silvia Pla | Low Energy States and CPT invariance at the Big Bang | 21 pages | null | 10.1103/PhysRevD.107.085018 | null | gr-qc hep-th | http://creativecommons.org/licenses/by/4.0/ | In this paper, we analyze the quantum vacuum in a radiation-dominated and
CPT-invariant universe by further imposing the quantum states to be ultraviolet
regular i.e., satisfying the Hadamard/adiabatic condition. For scalar fields,
this is enforced by constructing the vacuum via the States of Low Energy
proposal. For... | [
{
"created": "Fri, 17 Feb 2023 11:12:01 GMT",
"version": "v1"
}
] | 2023-05-10 | [
[
"Nadal-Gisbert",
"Sergi",
""
],
[
"Navarro-Salas",
"José",
""
],
[
"Pla",
"Silvia",
""
]
] | In this paper, we analyze the quantum vacuum in a radiation-dominated and CPT-invariant universe by further imposing the quantum states to be ultraviolet regular i.e., satisfying the Hadamard/adiabatic condition. For scalar fields, this is enforced by constructing the vacuum via the States of Low Energy proposal. For s... |
1703.00610 | Rafael Sorkin | Rafael D. Sorkin | From Green Function to Quantum Field | plainTeX, 29 pages, 7 figures. Most current version is available at
http://www.perimeterinstitute.ca/personal/rsorkin/some.papers/157.G2f.pdf (or
wherever my home-page may be, such as
http://www.physics.syr.edu/~sorkin/some.papers/) | null | 10.1142/S0219887817400072 | null | gr-qc hep-th math-ph math.MP quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A pedagogical introduction to the theory of a gaussian scalar field which
shows firstly, how the whole theory is encapsulated in the Wightman function
$W(x,y)=\langle\phi(x)\phi(y)\rangle$ regarded abstractly as a two-index tensor
on the vector space of (spacetime) field configurations, and secondly how one
can arriv... | [
{
"created": "Thu, 2 Mar 2017 04:19:11 GMT",
"version": "v1"
}
] | 2017-08-02 | [
[
"Sorkin",
"Rafael D.",
""
]
] | A pedagogical introduction to the theory of a gaussian scalar field which shows firstly, how the whole theory is encapsulated in the Wightman function $W(x,y)=\langle\phi(x)\phi(y)\rangle$ regarded abstractly as a two-index tensor on the vector space of (spacetime) field configurations, and secondly how one can arrive ... |
1702.07291 | Antonio Troisi | Antonio Troisi | Higher-order gravity in higher dimensions: Geometrical origins of
four-dimensional cosmology? | 18 pages, 4 figures; accepted for publication in EPJC | null | 10.1140/epjc/s10052-017-4719-7 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Determining cosmological field equations represents a still very debated
matter and implies a wide discussion around different theoretical proposals. A
suitable conceptual scheme could be represented by gravity models that
naturally generalize Einstein Theory like higher order gravity theories and
higher dimensional ... | [
{
"created": "Thu, 23 Feb 2017 16:54:30 GMT",
"version": "v1"
}
] | 2017-04-05 | [
[
"Troisi",
"Antonio",
""
]
] | Determining cosmological field equations represents a still very debated matter and implies a wide discussion around different theoretical proposals. A suitable conceptual scheme could be represented by gravity models that naturally generalize Einstein Theory like higher order gravity theories and higher dimensional on... |
gr-qc/0702068 | Reinhard Prix | Reinhard Prix | Search for Continuous Gravitational Waves: simple criterion for optimal
detector networks | 3 pages, 2 figures; Proceedings of the 11th Marcel-Grossmann Meeting
(MG11) | null | 10.1142/9789812834300_0429 | null | gr-qc | null | We derive a simple algebraic criterion to select the optimal detector network
for a coherent wide parameter-space (all-sky) search for continuous
gravitational waves. Optimality in this context is defined as providing the
highest (average) sensitivity per computing cost. This criterion is a direct
consequence of the ... | [
{
"created": "Mon, 12 Feb 2007 12:46:22 GMT",
"version": "v1"
}
] | 2016-11-15 | [
[
"Prix",
"Reinhard",
""
]
] | We derive a simple algebraic criterion to select the optimal detector network for a coherent wide parameter-space (all-sky) search for continuous gravitational waves. Optimality in this context is defined as providing the highest (average) sensitivity per computing cost. This criterion is a direct consequence of the pr... |
0712.3419 | Craig J. Hogan | Craig J. Hogan | Measurement of Quantum Fluctuations in Geometry | 7 pages, 2 figures, LaTeX. Extensive rewrite of original version,
including more detailed analysis. Main result is the same but the estimate of
noise in strain units for GEO600, showing 1/f behavior at low f and flat at
high f, is improved. To appear in Phys. Rev. D | Phys.Rev.D77:104031,2008 | 10.1103/PhysRevD.77.104031 | null | gr-qc astro-ph hep-ph | null | A particular form for the quantum indeterminacy of relative spacetime
position of events is derived from the limits of measurement possible with
Planck wavelength radiation. The indeterminacy predicts fluctuations from a
classically defined geometry in the form of ``holographic noise'' whose spatial
character, absolu... | [
{
"created": "Thu, 20 Dec 2007 13:48:00 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Jan 2008 17:50:20 GMT",
"version": "v2"
},
{
"created": "Mon, 28 Jan 2008 02:03:21 GMT",
"version": "v3"
},
{
"created": "Fri, 1 Feb 2008 14:53:10 GMT",
"version": "v4"
},
{
"cr... | 2008-11-26 | [
[
"Hogan",
"Craig J.",
""
]
] | A particular form for the quantum indeterminacy of relative spacetime position of events is derived from the limits of measurement possible with Planck wavelength radiation. The indeterminacy predicts fluctuations from a classically defined geometry in the form of ``holographic noise'' whose spatial character, absolute... |
gr-qc/0107030 | Leo Brewin | Leo Brewin | Long term stable integration of a maximally sliced Schwarzschild black
hole using a smooth lattice method | 47 pages including 26 figures, plain TeX, also available at
http://www.maths.monash.edu.au/~leo/preprints | Class.Quant.Grav. 19 (2002) 429-456 | 10.1088/0264-9381/19/3/302 | null | gr-qc | null | We will present results of a numerical integration of a maximally sliced
Schwarzschild black hole using a smooth lattice method. The results show no
signs of any instability forming during the evolutions to t=1000m. The
principle features of our method are i) the use of a lattice to record the
geometry, ii) the use o... | [
{
"created": "Tue, 10 Jul 2001 05:30:54 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Brewin",
"Leo",
""
]
] | We will present results of a numerical integration of a maximally sliced Schwarzschild black hole using a smooth lattice method. The results show no signs of any instability forming during the evolutions to t=1000m. The principle features of our method are i) the use of a lattice to record the geometry, ii) the use of ... |
2407.20567 | Adam Rogers | Adam Rogers | Ray Tracing Through Absorbing Dielectric Media in the Schwarzschild
Spacetime | Comments Welcome! | Class. Quantum Grav., 2024, 41, 17 | 10.1088/1361-6382/ad64a5 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | General Relativity describes the trajectories of light-rays through curved
spacetime near a massive object. In addition to gravitational lensing, we
include an absorbing dielectric medium given by a complex refractive index
known as the Drude model. When absorption is included the eikonal becomes
complex, with the im... | [
{
"created": "Tue, 30 Jul 2024 05:52:39 GMT",
"version": "v1"
}
] | 2024-07-31 | [
[
"Rogers",
"Adam",
""
]
] | General Relativity describes the trajectories of light-rays through curved spacetime near a massive object. In addition to gravitational lensing, we include an absorbing dielectric medium given by a complex refractive index known as the Drude model. When absorption is included the eikonal becomes complex, with the imag... |
2407.08327 | Zihan Zhou | M. V. S. Saketh, Zihan Zhou, Suprovo Ghosh, Jan Steinhoff, Debarati
Chatterjee | Investigating tidal heating in neutron stars via gravitational Raman
scattering | 28 pages, 2 tables, 1 appendix, version 2 | null | null | null | gr-qc astro-ph.HE hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | We present a scattering amplitude formalism to study the tidal heating
effects of nonspinning neutron stars incorporating both worldline effective
field theory and relativistic stellar perturbation theory. In neutron stars,
tidal heating arises from fluid viscosity due to various scattering processes
in the interior.... | [
{
"created": "Thu, 11 Jul 2024 09:26:04 GMT",
"version": "v1"
},
{
"created": "Fri, 26 Jul 2024 17:42:14 GMT",
"version": "v2"
}
] | 2024-07-29 | [
[
"Saketh",
"M. V. S.",
""
],
[
"Zhou",
"Zihan",
""
],
[
"Ghosh",
"Suprovo",
""
],
[
"Steinhoff",
"Jan",
""
],
[
"Chatterjee",
"Debarati",
""
]
] | We present a scattering amplitude formalism to study the tidal heating effects of nonspinning neutron stars incorporating both worldline effective field theory and relativistic stellar perturbation theory. In neutron stars, tidal heating arises from fluid viscosity due to various scattering processes in the interior. I... |
2401.07846 | Naoki Tsukamoto | Naoki Tsukamoto | Circular light orbits of a general, static, and spherical symmetrical
wormhole with $Z_2$ symmetry | 11 pages, 5 figures, minor correction | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | A general asymptotically-flat, static, and spherical symmetrical wormhole
without a thin shell has at least one unstable circular light orbit at a
radius. If the wormhole has $Z_2$ symmetry against the throat, the stable or
unstable circular light orbit must be on the throat but this fact is often
overlooked. In this... | [
{
"created": "Mon, 15 Jan 2024 17:22:46 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Feb 2024 08:05:55 GMT",
"version": "v2"
},
{
"created": "Sun, 23 Jun 2024 10:15:19 GMT",
"version": "v3"
}
] | 2024-06-25 | [
[
"Tsukamoto",
"Naoki",
""
]
] | A general asymptotically-flat, static, and spherical symmetrical wormhole without a thin shell has at least one unstable circular light orbit at a radius. If the wormhole has $Z_2$ symmetry against the throat, the stable or unstable circular light orbit must be on the throat but this fact is often overlooked. In this s... |
2210.16983 | Shinji Tsujikawa | Ratchaphat Nakarachinda, Sirachak Panpanich, Shinji Tsujikawa,
Pitayuth Wongjun | Cosmology in theories with spontaneous scalarization of neutron stars | 15 pages, 8 figures | Phys. Rev. D 107, 043512 (2023) | 10.1103/PhysRevD.107.043512 | WUCG-22-10 | gr-qc astro-ph.CO hep-ph hep-th | http://creativecommons.org/licenses/by/4.0/ | In a model of spontaneous scalarization of neutron stars proposed by Damour
and Esposite-Farese, a general relativistic branch becomes unstable to trigger
tachyonic growth of a scalar field $\phi$ toward a scalarized branch. Applying
this scenario to cosmology, there is fatal tachyonic instability of $\phi$
during in... | [
{
"created": "Sun, 30 Oct 2022 23:42:32 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Feb 2023 00:11:08 GMT",
"version": "v2"
}
] | 2023-02-13 | [
[
"Nakarachinda",
"Ratchaphat",
""
],
[
"Panpanich",
"Sirachak",
""
],
[
"Tsujikawa",
"Shinji",
""
],
[
"Wongjun",
"Pitayuth",
""
]
] | In a model of spontaneous scalarization of neutron stars proposed by Damour and Esposite-Farese, a general relativistic branch becomes unstable to trigger tachyonic growth of a scalar field $\phi$ toward a scalarized branch. Applying this scenario to cosmology, there is fatal tachyonic instability of $\phi$ during infl... |
2312.12393 | Adam Zenon Kaczmarek | Adam Z. Kaczmarek and Dominik Szcz\k{e}\'sniak | The hybrid cosmology in the scalar-tensor representation of
$f(\mathcal{G},T)$ gravity | 14 pages, 4 figures | null | null | null | gr-qc | http://creativecommons.org/licenses/by/4.0/ | In this work, the $f(\mathcal{G},T)$ theory of gravity is recast in terms of
the $\phi$ and $\psi$ fields within the scalar-tensor formulation, where
$\mathcal{G}$ is the Gauss-Bonnet term and $T$ denotes the trace of the
energy-momentum tensor. The general aspects of the introduced reformulation are
discussed and th... | [
{
"created": "Tue, 19 Dec 2023 18:31:13 GMT",
"version": "v1"
}
] | 2023-12-20 | [
[
"Kaczmarek",
"Adam Z.",
""
],
[
"Szczęśniak",
"Dominik",
""
]
] | In this work, the $f(\mathcal{G},T)$ theory of gravity is recast in terms of the $\phi$ and $\psi$ fields within the scalar-tensor formulation, where $\mathcal{G}$ is the Gauss-Bonnet term and $T$ denotes the trace of the energy-momentum tensor. The general aspects of the introduced reformulation are discussed and the ... |
1807.10243 | Cosimo Bambi | Yerong Xu, Sourabh Nampalliwar, Askar B. Abdikamalov, Dimitry
Ayzenberg, Cosimo Bambi, Thomas Dauser, Javier A. Garcia, Jiachen Jiang | A study of the strong gravity region of the black hole in GS 1354-645 | 6 pages, 3 figures. v2: refereed version | Astrophys.J. 865: 134 (2018) | 10.3847/1538-4357/aadb9d | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is thought that the spacetime metric around astrophysical black holes is
well described by the Kerr solution of Einstein's gravity. However, a robust
observational evidence of the Kerr nature of these objects is still lacking.
Here we fit the X-ray spectrum of the stellar-mass black hole in GS 1354-645
with a disk... | [
{
"created": "Thu, 26 Jul 2018 17:05:02 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Oct 2018 13:07:48 GMT",
"version": "v2"
}
] | 2018-10-02 | [
[
"Xu",
"Yerong",
""
],
[
"Nampalliwar",
"Sourabh",
""
],
[
"Abdikamalov",
"Askar B.",
""
],
[
"Ayzenberg",
"Dimitry",
""
],
[
"Bambi",
"Cosimo",
""
],
[
"Dauser",
"Thomas",
""
],
[
"Garcia",
"Javier A.",
""
... | It is thought that the spacetime metric around astrophysical black holes is well described by the Kerr solution of Einstein's gravity. However, a robust observational evidence of the Kerr nature of these objects is still lacking. Here we fit the X-ray spectrum of the stellar-mass black hole in GS 1354-645 with a disk r... |
1310.1412 | M Blagojevi\'c | M. Blagojevi\'c, B. Cvetkovi\'c, and M. Vasili\'c | "Exotic" black holes with torsion | Revtex4, 3 pages | Phys.Rev. D88 (2013) 101501(R) | 10.1103/PhysRevD.88.101501 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the context of three-dimensional gravity with torsion, the concepts of
standard and "exotic" Banados-Teitelboim-Zanelli black holes are generalized by
going over to black holes with torsion. This approach provides a unified
insight into thermodynamics of black holes, with or without torsion.
| [
{
"created": "Fri, 4 Oct 2013 21:27:16 GMT",
"version": "v1"
}
] | 2013-12-06 | [
[
"Blagojević",
"M.",
""
],
[
"Cvetković",
"B.",
""
],
[
"Vasilić",
"M.",
""
]
] | In the context of three-dimensional gravity with torsion, the concepts of standard and "exotic" Banados-Teitelboim-Zanelli black holes are generalized by going over to black holes with torsion. This approach provides a unified insight into thermodynamics of black holes, with or without torsion. |
1711.01394 | Chopin Soo | Eyo Eyo Ita III, Chopin Soo and Hoi-Lai Yu | Cosmic time and reduced phase space of General Relativity | 8 pages, replaced by published version | Phys. Rev. D 97, 104021 (2018) | 10.1103/PhysRevD.97.104021 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In an ever-expanding spatially closed universe, the fractional change of the
volume is the preeminent intrinsic time interval to describe evolution in
General Relativity. The expansion of the universe serves as a subsidiary
condition which transforms Einstein's theory from a first class to a second
class constrained ... | [
{
"created": "Sat, 4 Nov 2017 04:53:12 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Jun 2018 09:02:21 GMT",
"version": "v2"
}
] | 2018-06-14 | [
[
"Ita",
"Eyo Eyo",
"III"
],
[
"Soo",
"Chopin",
""
],
[
"Yu",
"Hoi-Lai",
""
]
] | In an ever-expanding spatially closed universe, the fractional change of the volume is the preeminent intrinsic time interval to describe evolution in General Relativity. The expansion of the universe serves as a subsidiary condition which transforms Einstein's theory from a first class to a second class constrained sy... |
1804.03158 | Fethi M. Ramazanoglu | Fethi M Ramazano\u{g}lu | Spontaneous growth of gauge fields in gravity through the Higgs
mechanism | This version corrects some equations which were also updated in the
online version at PRD. Conclusions are unchanged | Phys. Rev. D 98, 044013 (2018) | 10.1103/PhysRevD.98.044013 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce gravity theories featuring spontaneously growing gauge fields
where the growth is due to the Higgs mechanism. The underlying physics is
inspired by the spontaneous scalarization phenomena in scalar-tensor theories.
The tachyonic instability that causes the growth in spontaneous scalarization
and its anal... | [
{
"created": "Mon, 9 Apr 2018 18:00:16 GMT",
"version": "v1"
},
{
"created": "Wed, 15 Aug 2018 12:39:10 GMT",
"version": "v2"
},
{
"created": "Mon, 7 Oct 2019 14:22:29 GMT",
"version": "v3"
}
] | 2019-10-08 | [
[
"Ramazanoğlu",
"Fethi M",
""
]
] | We introduce gravity theories featuring spontaneously growing gauge fields where the growth is due to the Higgs mechanism. The underlying physics is inspired by the spontaneous scalarization phenomena in scalar-tensor theories. The tachyonic instability that causes the growth in spontaneous scalarization and its analog... |
1606.04359 | Emmanuil Saridakis | Rafael C. Nunes, Supriya Pan, Emmanuel N. Saridakis | New observational constraints on f(T) gravity from cosmic chronometers | 24 pages, 9 Figures, 7 Tables, version published in JCAP | JCAP 1608 (2016) no.08, 011 | 10.1088/1475-7516/2016/08/011 | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the local value of the Hubble constant recently measured with 2.4%
precision, as well as the latest compilation of cosmic chronometers data,
together with standard probes such as Supernovae Type Ia and Baryon Acoustic
Oscillation distance measurements, in order to impose constraints on the viable
and most used... | [
{
"created": "Tue, 7 Jun 2016 19:18:29 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Aug 2016 08:06:40 GMT",
"version": "v2"
}
] | 2016-08-10 | [
[
"Nunes",
"Rafael C.",
""
],
[
"Pan",
"Supriya",
""
],
[
"Saridakis",
"Emmanuel N.",
""
]
] | We use the local value of the Hubble constant recently measured with 2.4% precision, as well as the latest compilation of cosmic chronometers data, together with standard probes such as Supernovae Type Ia and Baryon Acoustic Oscillation distance measurements, in order to impose constraints on the viable and most used f... |
gr-qc/9508013 | null | S. Mignemi | Exact solutions, symmetries and quantization of two-dimensional
higher-derivative gravity with dynamical torsion | 10 pages, plain Tex, 3 figures available from the author | null | null | IRS-9502 | gr-qc | null | We investigate two-dimensional higher derivative gravitational theories in a
Riemann-Cartan framework and obtain the most general static black hole
solutions in conformal coordinates. We also consider the hamiltonian
formulation of the theory and discuss its symmetries, showing they are
implemented by a non-linear ge... | [
{
"created": "Sat, 5 Aug 1995 14:30:54 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Mignemi",
"S.",
""
]
] | We investigate two-dimensional higher derivative gravitational theories in a Riemann-Cartan framework and obtain the most general static black hole solutions in conformal coordinates. We also consider the hamiltonian formulation of the theory and discuss its symmetries, showing they are implemented by a non-linear gene... |
0803.0648 | Istv\'an R\'acz | Istv\'an R\'acz | Space-time extensions II | 42 pages, no figures, small changes to match the published version | Class.Quant.Grav.27:155007,2010 | 10.1088/0264-9381/27/15/155007 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The global extendibility of smooth causal geodesically incomplete spacetimes
is investigated. Denote by $\gamma$ one of the incomplete non-extendible causal
geodesics of a causal geodesically incomplete spacetime $(M,g_{ab})$. First, it
is shown that it is always possible to select a synchronised family of causal
geo... | [
{
"created": "Wed, 5 Mar 2008 12:55:12 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Jun 2010 22:02:23 GMT",
"version": "v2"
}
] | 2010-06-29 | [
[
"Rácz",
"István",
""
]
] | The global extendibility of smooth causal geodesically incomplete spacetimes is investigated. Denote by $\gamma$ one of the incomplete non-extendible causal geodesics of a causal geodesically incomplete spacetime $(M,g_{ab})$. First, it is shown that it is always possible to select a synchronised family of causal geode... |
gr-qc/9910099 | Chris Doran | Chris Doran | A new form of the Kerr solution | 8 pages, LaTeX, no figures. Corrected and improved version. To appear
in Phys. Rev. D | Phys.Rev. D61 (2000) 067503 | 10.1103/PhysRevD.61.067503 | null | gr-qc astro-ph | null | A new form of the Kerr solution is presented. The solution involves a time
coordinate which represents the local proper time for free-falling observers on
a set of simple trajectories. Many physical phenomena are particularly clear
when related to this time coordinate. The chosen coordinates also ensure that
the solu... | [
{
"created": "Wed, 27 Oct 1999 10:49:50 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Oct 1999 08:11:00 GMT",
"version": "v2"
},
{
"created": "Mon, 31 Jan 2000 09:23:11 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"Doran",
"Chris",
""
]
] | A new form of the Kerr solution is presented. The solution involves a time coordinate which represents the local proper time for free-falling observers on a set of simple trajectories. Many physical phenomena are particularly clear when related to this time coordinate. The chosen coordinates also ensure that the soluti... |
1511.02060 | Juan Calderon Bustillo | Juan Calder\'on Bustillo, Sascha Husa, Alicia M. Sintes and Michael
P\"urrer | Impact of gravitational radiation higher order modes on single
aligned-spin gravitational wave searches for binary black holes | 11 pages, 10 figures | Phys. Rev. D 93, 084019 (2016) | 10.1103/PhysRevD.93.084019 | LIGO-P1500184 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Current template-based gravitational wave searches for compact binary
coalescences (CBC) use waveform models that neglect the higher order modes
content of the gravitational radiation emitted, considering only the
quadrupolar $(\ell,|m|)=(2,2)$ modes. We study the effect of such a neglection
for the case of aligned-s... | [
{
"created": "Fri, 6 Nov 2015 13:02:33 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Nov 2015 12:27:41 GMT",
"version": "v2"
}
] | 2016-04-20 | [
[
"Bustillo",
"Juan Calderón",
""
],
[
"Husa",
"Sascha",
""
],
[
"Sintes",
"Alicia M.",
""
],
[
"Pürrer",
"Michael",
""
]
] | Current template-based gravitational wave searches for compact binary coalescences (CBC) use waveform models that neglect the higher order modes content of the gravitational radiation emitted, considering only the quadrupolar $(\ell,|m|)=(2,2)$ modes. We study the effect of such a neglection for the case of aligned-spi... |
1608.05020 | Yurii Ignat'ev | Yurii Ignat'ev, Alexander Agathonov and Dmitry Ignatyev | Statistical Cosmological Fermion Systems With Interparticle Fantom
Scalar Interaction | 67 pages, 71 figures, 43 references | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The article represents a research of the cosmological evolution of fermion
statistical systems with fantom scalar interaction where "kinetic" term's
contribution to the total energy of a scalar field is negative. As a result of
analytical and numerical simulation of such systems it has been revealed a
existence of fo... | [
{
"created": "Wed, 17 Aug 2016 17:07:25 GMT",
"version": "v1"
}
] | 2016-08-18 | [
[
"Ignat'ev",
"Yurii",
""
],
[
"Agathonov",
"Alexander",
""
],
[
"Ignatyev",
"Dmitry",
""
]
] | The article represents a research of the cosmological evolution of fermion statistical systems with fantom scalar interaction where "kinetic" term's contribution to the total energy of a scalar field is negative. As a result of analytical and numerical simulation of such systems it has been revealed a existence of four... |
2104.05756 | Jakub Bilski | Jakub Bilski | Relativistic classical theory II. Holonomy-flux representation of
gravitational degrees of freedom | 42 pages, 13 figures | null | null | null | gr-qc hep-lat hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This article describes the regularization of the generally relativistic gauge
field representation of gravity on a piecewise linear lattice. It is a part of
the program concerning the classical relativistic theory of fundamental
interactions, represented by minimally coupled gauge vector field densities and
half-dens... | [
{
"created": "Mon, 12 Apr 2021 18:37:34 GMT",
"version": "v1"
}
] | 2021-04-14 | [
[
"Bilski",
"Jakub",
""
]
] | This article describes the regularization of the generally relativistic gauge field representation of gravity on a piecewise linear lattice. It is a part of the program concerning the classical relativistic theory of fundamental interactions, represented by minimally coupled gauge vector field densities and half-densit... |
gr-qc/0206035 | Lee Lindblom | Lee Lindblom and Mark A. Scheel | Energy Norms and the Stability of the Einstein Evolution Equations | Corrected typos; to appear in Physical Review D | Phys.Rev. D66 (2002) 084014 | 10.1103/PhysRevD.66.084014 | null | gr-qc | null | The Einstein evolution equations may be written in a variety of equivalent
analytical forms, but numerical solutions of these different formulations
display a wide range of growth rates for constraint violations. For symmetric
hyperbolic formulations of the equations, an exact expression for the growth
rate is derive... | [
{
"created": "Wed, 12 Jun 2002 19:39:45 GMT",
"version": "v1"
},
{
"created": "Mon, 19 Aug 2002 20:35:43 GMT",
"version": "v2"
},
{
"created": "Fri, 27 Sep 2002 18:15:52 GMT",
"version": "v3"
}
] | 2009-11-07 | [
[
"Lindblom",
"Lee",
""
],
[
"Scheel",
"Mark A.",
""
]
] | The Einstein evolution equations may be written in a variety of equivalent analytical forms, but numerical solutions of these different formulations display a wide range of growth rates for constraint violations. For symmetric hyperbolic formulations of the equations, an exact expression for the growth rate is derived ... |
2307.13435 | Nelson V Nunes | N. V. Nunes, N. Bartel, A. Belonenko, G. D. Manucharyan, S. M. Popov,
V. N. Rudenko, L. I. Gurvits, G. Cim\`o, G. Molera Calv\'es, M. V.
Zakhvatkin, M. F. Bietenholz | Gravitational redshift test of EEP with RA from near Earth to the
distance of the Moon | Nelson V Nunes et al 2023 Class. Quantum Grav. in press
https://doi.org/10.1088/1361-6382/ace609 | null | 10.1088/1361-6382/ace609 | null | gr-qc astro-ph.IM | http://creativecommons.org/licenses/by/4.0/ | The Einstein Equivalence Principle (EEP) is a cornerstone of general
relativity and predicts the existence of gravitational redshift. We report on
new results of measuring this shift with RadioAstron (RA), a space VLBI
spacecraft launched into an evolving high eccentricity orbit around Earth with
geocentric distances... | [
{
"created": "Tue, 25 Jul 2023 12:02:36 GMT",
"version": "v1"
}
] | 2023-07-26 | [
[
"Nunes",
"N. V.",
""
],
[
"Bartel",
"N.",
""
],
[
"Belonenko",
"A.",
""
],
[
"Manucharyan",
"G. D.",
""
],
[
"Popov",
"S. M.",
""
],
[
"Rudenko",
"V. N.",
""
],
[
"Gurvits",
"L. I.",
""
],
[
"Cimò",... | The Einstein Equivalence Principle (EEP) is a cornerstone of general relativity and predicts the existence of gravitational redshift. We report on new results of measuring this shift with RadioAstron (RA), a space VLBI spacecraft launched into an evolving high eccentricity orbit around Earth with geocentric distances r... |
1912.08089 | Ester Piedipalumbo | Ester Piedipalumbo, Mariafelicia De Laurentis, Salvatore Capozziello | Noether symmetries in Interacting Quintessence Cosmology | 21 pages, 9 figures, accepted for publication in Physics of the Dark
Universe | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Noether Symmetry Approach is applied to interacting quintessence
cosmology with the aim to search for exact solutions and select scalar-field
self-interaction potentials. It turns out that the solutions found are
compatible with the accelerated expansion of the Universe and with
observational dataset, as the SNeI... | [
{
"created": "Mon, 16 Dec 2019 17:14:19 GMT",
"version": "v1"
}
] | 2019-12-19 | [
[
"Piedipalumbo",
"Ester",
""
],
[
"De Laurentis",
"Mariafelicia",
""
],
[
"Capozziello",
"Salvatore",
""
]
] | The Noether Symmetry Approach is applied to interacting quintessence cosmology with the aim to search for exact solutions and select scalar-field self-interaction potentials. It turns out that the solutions found are compatible with the accelerated expansion of the Universe and with observational dataset, as the SNeIa ... |
2102.05551 | Genly Le\'on | Genly Leon, Esteban Gonz\'alez, Samuel Lepe, Claudio Michea and
Alfredo D. Millano | Averaging generalized scalar field cosmologies III: Kantowski--Sachs and
closed Friedmann--Lema\^itre--Robertson--Walker models | Research Program Averaging Generalized Scalar Field Cosmologies, part
III. 54 pages, 26 compound figures. Extended version | null | null | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Scalar field cosmologies with a generalized harmonic potential and matter
with energy density $\rho_m$, pressure $p_m$, and barotropic equation of state
(EoS) $p_m=(\gamma-1)\rho_m, \; \gamma\in[0,2]$ in Kantowski-Sachs (KS) and
closed Friedmann--Lema\^itre--Robertson--Walker (FLRW) metrics are
investigated. We use m... | [
{
"created": "Wed, 10 Feb 2021 16:34:52 GMT",
"version": "v1"
},
{
"created": "Fri, 12 Feb 2021 20:39:00 GMT",
"version": "v2"
},
{
"created": "Mon, 31 May 2021 22:20:03 GMT",
"version": "v3"
},
{
"created": "Thu, 5 Aug 2021 23:27:33 GMT",
"version": "v4"
}
] | 2021-08-09 | [
[
"Leon",
"Genly",
""
],
[
"González",
"Esteban",
""
],
[
"Lepe",
"Samuel",
""
],
[
"Michea",
"Claudio",
""
],
[
"Millano",
"Alfredo D.",
""
]
] | Scalar field cosmologies with a generalized harmonic potential and matter with energy density $\rho_m$, pressure $p_m$, and barotropic equation of state (EoS) $p_m=(\gamma-1)\rho_m, \; \gamma\in[0,2]$ in Kantowski-Sachs (KS) and closed Friedmann--Lema\^itre--Robertson--Walker (FLRW) metrics are investigated. We use met... |
gr-qc/0601068 | Mark D. Roberts | Mark D. Roberts | Quadratic field equations on the brane | To appear in Nuovo Cimento, updated to coincide with the published
version. | Nuovo Cim.B125:309-314,2010 | 10.1393/ncb/i2010-10873-7 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is shown that four dimensional vacuum Einstein solutions simply embedded
in five dimensions obey the Gauss-Bonnet-Einstein field equations:
$G_{ab}+\alpha GB_{ab}+\delta^{55}_{ab}\alpha\exp(-2\chi/\sqrt{\alpha})GB_4=0$
and the Pauli-Einstein equations $G_{ab}-3\alpha P_{ab}/5=0$, and the
Bach-Einstein equations $B... | [
{
"created": "Tue, 17 Jan 2006 14:25:49 GMT",
"version": "v1"
},
{
"created": "Tue, 30 Mar 2010 16:07:22 GMT",
"version": "v2"
}
] | 2010-11-11 | [
[
"Roberts",
"Mark D.",
""
]
] | It is shown that four dimensional vacuum Einstein solutions simply embedded in five dimensions obey the Gauss-Bonnet-Einstein field equations: $G_{ab}+\alpha GB_{ab}+\delta^{55}_{ab}\alpha\exp(-2\chi/\sqrt{\alpha})GB_4=0$ and the Pauli-Einstein equations $G_{ab}-3\alpha P_{ab}/5=0$, and the Bach-Einstein equations $B_{... |
gr-qc/0606114 | Takashi Fukumoto | Takashi Fukumoto (1), Toshifumi Futamase (1), and Yousuke Itoh (2)
((1) Tohoku U., Japan, (2) U. of Wisconsin Milwaukee, USA) | On the Equation of Motion for a Fast Moving Small Object in the Strong
Field Point Particle Limit | accepted by Progress of Theoretical Physics | Prog.Theor.Phys. 116 (2006) 423-428 | 10.1143/PTP.116.423 | null | gr-qc astro-ph | null | We give a straightforward and divergence free derivation of the equation of
motion for a small but finite object in an arbitrary background using strong
field point particle limit. The resulting equation becomes a generalized
geodesic for a non-rotating spherical object which is consisitent with previous
studies.
| [
{
"created": "Tue, 27 Jun 2006 04:36:39 GMT",
"version": "v1"
},
{
"created": "Thu, 4 Jan 2007 08:02:23 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Fukumoto",
"Takashi",
"",
"Tohoku U., Japan"
],
[
"Futamase",
"Toshifumi",
"",
"Tohoku U., Japan"
],
[
"Itoh",
"Yousuke",
"",
"U. of Wisconsin Milwaukee, USA"
]
] | We give a straightforward and divergence free derivation of the equation of motion for a small but finite object in an arbitrary background using strong field point particle limit. The resulting equation becomes a generalized geodesic for a non-rotating spherical object which is consisitent with previous studies. |
gr-qc/0102097 | Roman R. Zapatrin | A. Mallios, I. Raptis | Finitary Spacetime Sheaves of Quantum Causal Sets: Curving Quantum
Causality | This is a shortened version of the abstract. The paper is submitted
to the International Journal of Theoretical Physics | Int.J.Theor.Phys. 40 (2001) 1885-1928 | null | null | gr-qc | null | A locally finite, causal and quantal substitute for a locally Minkowskian
principal fiber bundle $\cal{P}$ of modules of Cartan differential forms $\omg$
over a bounded region $X$ of a curved $C^{\infty}$-smooth differential manifold
spacetime $M$ with structure group ${\bf G}$ that of orthochronous Lorentz
transform... | [
{
"created": "Thu, 22 Feb 2001 13:21:58 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Mallios",
"A.",
""
],
[
"Raptis",
"I.",
""
]
] | A locally finite, causal and quantal substitute for a locally Minkowskian principal fiber bundle $\cal{P}$ of modules of Cartan differential forms $\omg$ over a bounded region $X$ of a curved $C^{\infty}$-smooth differential manifold spacetime $M$ with structure group ${\bf G}$ that of orthochronous Lorentz transformat... |
0801.2639 | Manfred Requardt | Manfred Requardt | Thermodynamics meets Special Relativity -- or what is real in Physics? | 27 pages, latex, no figures | null | null | null | gr-qc cond-mat.stat-mech hep-th | null | In this paper we carefully reexamine the various framworks existing in the
field of relativistic thermodynamics. We scrutinize in particular the different
conceptual foundations of notions like the relativistic work, heat force,
moving heat and relativistic temperature. As to the latter notion we argue
that, as in or... | [
{
"created": "Thu, 17 Jan 2008 09:43:50 GMT",
"version": "v1"
}
] | 2008-01-21 | [
[
"Requardt",
"Manfred",
""
]
] | In this paper we carefully reexamine the various framworks existing in the field of relativistic thermodynamics. We scrutinize in particular the different conceptual foundations of notions like the relativistic work, heat force, moving heat and relativistic temperature. As to the latter notion we argue that, as in ordi... |
0801.2850 | Claudio Dappiaggi | Claudio Dappiaggi, Klaus Fredenhagen and Nicola Pinamonti | Stable cosmological models driven by a free quantum scalar field | 8 pages, 1 figure and revtex. Comments and references added | Phys.Rev.D77:104015,2008 | 10.1103/PhysRevD.77.104015 | Desy 08-006, ZMP-HH/08-1 | gr-qc hep-th | null | In the mathematically rigorous analysis of semiclassical Einstein's
equations, the renormalisation of the stress-energy tensor plays a crucial
role. We address such a topic in the case of a scalar field with both arbitrary
mass and coupling with gravity in the hypothesis that the underlying algebraic
quantum state is... | [
{
"created": "Fri, 18 Jan 2008 15:24:51 GMT",
"version": "v1"
},
{
"created": "Fri, 1 Feb 2008 16:12:36 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Dappiaggi",
"Claudio",
""
],
[
"Fredenhagen",
"Klaus",
""
],
[
"Pinamonti",
"Nicola",
""
]
] | In the mathematically rigorous analysis of semiclassical Einstein's equations, the renormalisation of the stress-energy tensor plays a crucial role. We address such a topic in the case of a scalar field with both arbitrary mass and coupling with gravity in the hypothesis that the underlying algebraic quantum state is o... |
1812.10879 | Nikolaos Dimakis | A. Karagiorgos, T. Pailas, N. Dimakis, G. O. Papadopoulos, Petros A.
Terzis and T. Christodoulakis | Quantum cosmology of Bianchi VIII, IX LRS geometries | LaTeX2e source file, 16 pages, 2 figures | null | 10.1088/1475-7516/2019/04/006 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the present work we revisit the axisymmetric Bianchi VIII and IX models.
At the classical level we reproduce the known analytic solution, in a novel way
making use of two quadratic integrals of motion, the constraint equation, as
well as a linear non-local integral of motion. These quantities correspond to
two sec... | [
{
"created": "Fri, 28 Dec 2018 03:14:21 GMT",
"version": "v1"
}
] | 2019-04-10 | [
[
"Karagiorgos",
"A.",
""
],
[
"Pailas",
"T.",
""
],
[
"Dimakis",
"N.",
""
],
[
"Papadopoulos",
"G. O.",
""
],
[
"Terzis",
"Petros A.",
""
],
[
"Christodoulakis",
"T.",
""
]
] | In the present work we revisit the axisymmetric Bianchi VIII and IX models. At the classical level we reproduce the known analytic solution, in a novel way making use of two quadratic integrals of motion, the constraint equation, as well as a linear non-local integral of motion. These quantities correspond to two secon... |
2011.13616 | Jaroslav Vrba | Jaroslav Vrba, Martin Urbanec, Zden\v{e}k Stuchl\'ik and John C.
Miller | Trapping of null geodesics in slowly rotating spacetimes | null | null | 10.1140/epjc/s10052-020-08642-z | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extremely compact objects containing a region of trapped null geodesics could
be of astrophysical relevance due to trapping of neutrinos with consequent
impact on cooling processes or trapping of gravitational waves. These objects
have previously been studied under the assumption of spherical symmetry. In the
present... | [
{
"created": "Fri, 27 Nov 2020 09:14:00 GMT",
"version": "v1"
}
] | 2020-11-30 | [
[
"Vrba",
"Jaroslav",
""
],
[
"Urbanec",
"Martin",
""
],
[
"Stuchlík",
"Zdeněk",
""
],
[
"Miller",
"John C.",
""
]
] | Extremely compact objects containing a region of trapped null geodesics could be of astrophysical relevance due to trapping of neutrinos with consequent impact on cooling processes or trapping of gravitational waves. These objects have previously been studied under the assumption of spherical symmetry. In the present p... |
gr-qc/9306001 | null | Yu.A. Kubyshin and J.I. Perez Cadenas | Compactification to Non-symmetric Homogeneous Space in Multidimensional
Einstein-Yang-Mills Theory | 23 pages, LATEX, UB-ECM-PF 93/11 | null | null | null | gr-qc | null | We study ten-dimensional Einstein-Yang-Mills model with the space of extra
dimensions being a non-symmetric homogeneous space with the invariant metric
parametrized by two scales. Dimensional reduction of the model is carried out
and the scalar potential of the reduced theory is calculated. In a cosmological
setting ... | [
{
"created": "Tue, 1 Jun 1993 13:32:23 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kubyshin",
"Yu. A.",
""
],
[
"Cadenas",
"J. I. Perez",
""
]
] | We study ten-dimensional Einstein-Yang-Mills model with the space of extra dimensions being a non-symmetric homogeneous space with the invariant metric parametrized by two scales. Dimensional reduction of the model is carried out and the scalar potential of the reduced theory is calculated. In a cosmological setting mi... |
gr-qc/0608120 | Peter K.F. Kuhfittig | Peter K. F. Kuhfittig | On a time-dependent extra spatial dimension | Invited talk at the Fifth International Conference of Applied
Mathematics and Computing in Plovdiv, Bulgaria (August, 2008) | Int. J. of Pure and Appl. Math., vol. 49, no. 4, pp. 577-582, 2008 | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the usual brane-world scenario matter fields are confined to the
four-dimensional spacetime, called a 3-brane, embedded in a higher-dimensional
space, usually referred to as the bulk spacetime. In this paper we assume that
the 3-brane is a de Sitter space; there is only one extra spatial dimension,
assumed to be t... | [
{
"created": "Mon, 28 Aug 2006 17:01:51 GMT",
"version": "v1"
},
{
"created": "Tue, 22 May 2007 18:59:12 GMT",
"version": "v2"
},
{
"created": "Wed, 21 Jan 2009 14:36:55 GMT",
"version": "v3"
},
{
"created": "Mon, 23 Feb 2009 19:46:36 GMT",
"version": "v4"
},
{
"c... | 2012-05-15 | [
[
"Kuhfittig",
"Peter K. F.",
""
]
] | In the usual brane-world scenario matter fields are confined to the four-dimensional spacetime, called a 3-brane, embedded in a higher-dimensional space, usually referred to as the bulk spacetime. In this paper we assume that the 3-brane is a de Sitter space; there is only one extra spatial dimension, assumed to be tim... |
1909.01988 | Ashis Saha | Anish Das, Ashis Saha, Sunandan Gangopadhyay | Shadow of charged black holes in Gauss-Bonnet gravity | 18 pages Latex, comments are welcome | Eur. Phys. J. C 80, 180 (2020) | 10.1140/epjc/s10052-020-7726-z | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper, we investigate the effect of higher curvature corrections from
Gauss-Bonnet gravity on the shadow of charged black holes in both $AdS$ and
Minkowski spacetimes. The null geodesic equations are computed in $d=5$
spacetime dimensions by using the directions of symmetries and Hamilton-Jacobi
equation. Wit... | [
{
"created": "Wed, 4 Sep 2019 12:27:00 GMT",
"version": "v1"
}
] | 2020-02-28 | [
[
"Das",
"Anish",
""
],
[
"Saha",
"Ashis",
""
],
[
"Gangopadhyay",
"Sunandan",
""
]
] | In this paper, we investigate the effect of higher curvature corrections from Gauss-Bonnet gravity on the shadow of charged black holes in both $AdS$ and Minkowski spacetimes. The null geodesic equations are computed in $d=5$ spacetime dimensions by using the directions of symmetries and Hamilton-Jacobi equation. With ... |
gr-qc/0003105 | Matt Visser | Stefano Liberati (SISSA, Trieste), Sebastiano Sonego (U Udine), Matt
Visser (Washington University in Saint Louis) | Unexpectedly large surface gravities for acoustic horizons? | Plain LaTeX2e, 32 pages, 10 encapsulated postscript figures; Revised
in view of referee comments; More discussion, (role of viscosity,
relationship with other models), more references; physics and presentation
clarified but central conclusions unaltered | Class.Quant.Grav.17:2903,2000 | 10.1088/0264-9381/17/15/305 | null | gr-qc | null | Acoustic black holes are fluid dynamic analogs of general relativistic black
holes, wherein the behaviour of sound waves in a moving fluid acts as an analog
for scalar fields propagating in a gravitational background. Acoustic horizons
possess many of the properties more normally associated with the event horizons
of... | [
{
"created": "Tue, 28 Mar 2000 22:21:18 GMT",
"version": "v1"
},
{
"created": "Tue, 30 May 2000 21:02:45 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Liberati",
"Stefano",
"",
"SISSA, Trieste"
],
[
"Sonego",
"Sebastiano",
"",
"U Udine"
],
[
"Visser",
"Matt",
"",
"Washington University in Saint Louis"
]
] | Acoustic black holes are fluid dynamic analogs of general relativistic black holes, wherein the behaviour of sound waves in a moving fluid acts as an analog for scalar fields propagating in a gravitational background. Acoustic horizons possess many of the properties more normally associated with the event horizons of g... |
2302.10875 | Hongsheng Zhang | Kai Lin, Chieh-Hung Chen, Yang-Yi Sun, Xilong Fan, Hongsheng Zhang | Echoes of Stars in tracking Rastall gravity | 11 pages, 3 figs | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We construct a star with uniform density in frame of tracking Rastall
gravity, in which the density of effective dark matter tracks the density of
dark energy. To demonstrate stability of the star we analyse the axial
gravitational perturbations of the star. We find that echo wavelets naturally
appear in the axial gr... | [
{
"created": "Fri, 17 Feb 2023 10:07:26 GMT",
"version": "v1"
}
] | 2023-02-22 | [
[
"Lin",
"Kai",
""
],
[
"Chen",
"Chieh-Hung",
""
],
[
"Sun",
"Yang-Yi",
""
],
[
"Fan",
"Xilong",
""
],
[
"Zhang",
"Hongsheng",
""
]
] | We construct a star with uniform density in frame of tracking Rastall gravity, in which the density of effective dark matter tracks the density of dark energy. To demonstrate stability of the star we analyse the axial gravitational perturbations of the star. We find that echo wavelets naturally appear in the axial grav... |
gr-qc/9912080 | Mohammad Vahid Takook | J-P. Gazeau, M.V. Takook | "Massive" vector field in de Sitter space | 15 pages | J.Math.Phys. 41 (2000) 5920-5933; J.Math.Phys. 43 (2002) 6379 | 10.1063/1.1287641 | null | gr-qc | null | We present in this paper a covariant quantization of the ``massive'' vector
field on de Sitter (dS) space based on analyticity in the complexified
pseudo-Riemanian manifold. The correspondence between unitary irreducible
representations of the de Sitter group and the field theory on de Sitter
space-time is essential ... | [
{
"created": "Sun, 19 Dec 1999 07:24:37 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Gazeau",
"J-P.",
""
],
[
"Takook",
"M. V.",
""
]
] | We present in this paper a covariant quantization of the ``massive'' vector field on de Sitter (dS) space based on analyticity in the complexified pseudo-Riemanian manifold. The correspondence between unitary irreducible representations of the de Sitter group and the field theory on de Sitter space-time is essential in... |
gr-qc/9905010 | Garcia | L.C.Garcia de Andrade | Global monopoles and massless dilatons in Einstein-Cartan gravity | Latex file,10 K | null | null | null | gr-qc | null | A global monopole in dilatonic Einstein-Cartan gravity is presented. A
linearized solution representing a global monopole interacting with a massless
dilaton is found where Cartan torsion does not interact with the monopole Higgs
field.Computation of the geodesic equation shows that the monopole-dilaton
system genera... | [
{
"created": "Tue, 4 May 1999 09:29:09 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"de Andrade",
"L. C. Garcia",
""
]
] | A global monopole in dilatonic Einstein-Cartan gravity is presented. A linearized solution representing a global monopole interacting with a massless dilaton is found where Cartan torsion does not interact with the monopole Higgs field.Computation of the geodesic equation shows that the monopole-dilaton system generate... |
gr-qc/9211004 | null | Jonathan Halliwell and Miguel Ortiz | Sum-over-histories origin of the composition laws of relativistic
quantum mechanics and quantum cosmology | 36 pages | Phys.Rev. D48 (1993) 748-768 | 10.1103/PhysRevD.48.748 | CTP# 2134 | gr-qc hep-th | null | The scope of the paper has been broadened to include a more complete
discussion of the following topics: The derivation of composition laws in
quantum cosmology. The connection between the existence of a composition law in
the sum over histories approach to relativistic quantum mechanics and quantum
cosmology, and th... | [
{
"created": "Wed, 4 Nov 1992 21:33:16 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Jan 1993 20:45:11 GMT",
"version": "v2"
}
] | 2009-10-22 | [
[
"Halliwell",
"Jonathan",
""
],
[
"Ortiz",
"Miguel",
""
]
] | The scope of the paper has been broadened to include a more complete discussion of the following topics: The derivation of composition laws in quantum cosmology. The connection between the existence of a composition law in the sum over histories approach to relativistic quantum mechanics and quantum cosmology, and the ... |
gr-qc/9210008 | Jeff Greensite | J. Greensite | Dynamical Origin of the Lorentzian Signature of Spacetime | 6 pages, LaTeX | Phys.Lett. B300 (1993) 34-37 | 10.1016/0370-2693(93)90744-3 | NBI-HE-92-59 | gr-qc hep-th | null | It is suggested that not only the curvature, but also the signature of
spacetime is subject to quantum fluctuations. A generalized D-dimensional
spacetime metric of the form $g_{\mu \nu}=e^a_\mu \eta_{ab} e^b_\nu$ is
introduced, where $\eta_{ab} = diag\{e^{i\theta},1,...,1\}$. The corresponding
functional integral fo... | [
{
"created": "Wed, 14 Oct 1992 21:02:16 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Greensite",
"J.",
""
]
] | It is suggested that not only the curvature, but also the signature of spacetime is subject to quantum fluctuations. A generalized D-dimensional spacetime metric of the form $g_{\mu \nu}=e^a_\mu \eta_{ab} e^b_\nu$ is introduced, where $\eta_{ab} = diag\{e^{i\theta},1,...,1\}$. The corresponding functional integral for ... |
2009.06339 | Thomas Buchert | Ismael Delgado Gaspar and Thomas Buchert | Lagrangian theory of structure formation in relativistic cosmology. VI.
Comparison with Szekeres exact solutions | 27 pages, 1 figure; matches published version in PRD | Phys. Rev. D 103, 023513 (2021) | 10.1103/PhysRevD.103.023513 | null | gr-qc astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the relation between the Szekeres models and relativistic
Lagrangian perturbation schemes, in particular the Relativistic Zel'dovich
Approximation (RZA). We show that the second class of the Szekeres solutions is
exactly contained within the RZA when the latter is restricted to an
irrotational dust source ... | [
{
"created": "Mon, 14 Sep 2020 11:57:07 GMT",
"version": "v1"
},
{
"created": "Wed, 6 Jan 2021 17:58:17 GMT",
"version": "v2"
}
] | 2021-01-07 | [
[
"Gaspar",
"Ismael Delgado",
""
],
[
"Buchert",
"Thomas",
""
]
] | We examine the relation between the Szekeres models and relativistic Lagrangian perturbation schemes, in particular the Relativistic Zel'dovich Approximation (RZA). We show that the second class of the Szekeres solutions is exactly contained within the RZA when the latter is restricted to an irrotational dust source wi... |
gr-qc/0701034 | Mihalis Dafermos | Mihalis Dafermos and Alan D. Rendall | Strong cosmic censorship for surface-symmetric cosmological spacetimes
with collisionless matter | 83 pages, 16 figures | null | null | null | gr-qc math.AP math.DG | null | This paper addresses strong cosmic censorship for spacetimes with
self-gravitating collisionless matter, evolving from surface-symmetric compact
initial data. The global dynamics exhibit qualitatively different features
according to the sign of the curvature $k$ of the symmetric surfaces and the
cosmological constant... | [
{
"created": "Fri, 5 Jan 2007 12:37:21 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Dafermos",
"Mihalis",
""
],
[
"Rendall",
"Alan D.",
""
]
] | This paper addresses strong cosmic censorship for spacetimes with self-gravitating collisionless matter, evolving from surface-symmetric compact initial data. The global dynamics exhibit qualitatively different features according to the sign of the curvature $k$ of the symmetric surfaces and the cosmological constant $... |
1304.1595 | Chi Xiong | Kerson Huang, Chi Xiong, Xiaofei Zhao | Scalar-field theory of dark matter | 25 pages, 9 figures. A new section "Long-ranged force induced by the
scalar field" is added, plus a few clarifications in the paper. References
updated. To appear in International Journal of Modern Physics A | International Journal of Modern Physics A, Vol. 29 (2014) 1450074 | 10.1142/S0217751X14500742 | NTU-IAS-009 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We develop a theory of dark matter based on a previously proposed picture, in
which a complex vacuum scalar field makes the universe a superfluid, with the
energy density of the superfluid giving rise to dark energy, and variations
from vacuum density giving rise to dark matter. We formulate a nonlinear
Klein-Gordon ... | [
{
"created": "Fri, 5 Apr 2013 01:37:05 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Apr 2014 09:24:10 GMT",
"version": "v2"
}
] | 2014-04-30 | [
[
"Huang",
"Kerson",
""
],
[
"Xiong",
"Chi",
""
],
[
"Zhao",
"Xiaofei",
""
]
] | We develop a theory of dark matter based on a previously proposed picture, in which a complex vacuum scalar field makes the universe a superfluid, with the energy density of the superfluid giving rise to dark energy, and variations from vacuum density giving rise to dark matter. We formulate a nonlinear Klein-Gordon eq... |
1409.6513 | Pardyumn Kumar Sahoo | P.K. Sahoo, K.L. Mahanta, D. Goit, A.K. Sihna, S. S. Xulu, U.R. Das,
A. Prasad and R. Prasad | Einstein energy-momentum complex for a phantom black hole metric | 5 pages, 2 figures | Chin. Phys. Lett. Vol. 32, No. 02 (2015) 020402 | 10.1088/0256-307X/32/2/020402 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we calculate the energy distribution E(r) associated with a
static spherically symmetric non-singular phantom black hole metric in
Einstein's prescription in general relativity. As required for Einstein
energy-momentum complex, we perform calculations in quasi-Cartesian
coordinates. We also calculate mo... | [
{
"created": "Sun, 14 Sep 2014 11:04:58 GMT",
"version": "v1"
},
{
"created": "Fri, 16 Jan 2015 04:09:40 GMT",
"version": "v2"
}
] | 2017-04-19 | [
[
"Sahoo",
"P. K.",
""
],
[
"Mahanta",
"K. L.",
""
],
[
"Goit",
"D.",
""
],
[
"Sihna",
"A. K.",
""
],
[
"Xulu",
"S. S.",
""
],
[
"Das",
"U. R.",
""
],
[
"Prasad",
"A.",
""
],
[
"Prasad",
"R.",
... | In this paper we calculate the energy distribution E(r) associated with a static spherically symmetric non-singular phantom black hole metric in Einstein's prescription in general relativity. As required for Einstein energy-momentum complex, we perform calculations in quasi-Cartesian coordinates. We also calculate mome... |
gr-qc/0502004 | Marco Spaans | M. Spaans | A Background Independent Description of Physical Processes | Text rewritten for clarity, with emphasis on physical ideas | null | null | null | gr-qc hep-ph hep-th math-ph math.MP | null | A mathematical structure is presented that allows one to define a physical
process independent of any background. That is, it is possible, for a set of
objects, to choose an object from that set through a choice process that is
defined solely in terms of the objects in the set itself. It is conjectured
that this back... | [
{
"created": "Tue, 1 Feb 2005 19:27:03 GMT",
"version": "v1"
},
{
"created": "Sat, 26 Mar 2005 09:36:38 GMT",
"version": "v2"
},
{
"created": "Sun, 14 Jan 2007 15:21:25 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Spaans",
"M.",
""
]
] | A mathematical structure is presented that allows one to define a physical process independent of any background. That is, it is possible, for a set of objects, to choose an object from that set through a choice process that is defined solely in terms of the objects in the set itself. It is conjectured that this backgr... |
gr-qc/0504046 | Damir Buskulic | F. Beauville, D. Buskulic, R. Flaminio, R. Gouaty, D. Grosjean, F.
Marion, B. Mours, E. Tournefier, D. Verkindt, M. Yvert | Variable placement of templates technique in a 2D parameter space for
binary inspiral searches | 28 pages, 28 figures,submitted to CQG, fixed typos, added sections
following referees comments | Class.Quant.Grav. 22 (2005) 4285-4309 | 10.1088/0264-9381/22/20/010 | null | gr-qc | null | In the search for binary systems inspiral signal in interferometric
gravitational waves detectors, one needs the generation and placement of a grid
of templates. We present an original technique for the placement in the
associated parameter space, that makes use of the variation of size of the
isomatch ellipses in or... | [
{
"created": "Tue, 12 Apr 2005 08:26:21 GMT",
"version": "v1"
},
{
"created": "Wed, 31 Aug 2005 10:08:35 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Beauville",
"F.",
""
],
[
"Buskulic",
"D.",
""
],
[
"Flaminio",
"R.",
""
],
[
"Gouaty",
"R.",
""
],
[
"Grosjean",
"D.",
""
],
[
"Marion",
"F.",
""
],
[
"Mours",
"B.",
""
],
[
"Tournefier",
"E."... | In the search for binary systems inspiral signal in interferometric gravitational waves detectors, one needs the generation and placement of a grid of templates. We present an original technique for the placement in the associated parameter space, that makes use of the variation of size of the isomatch ellipses in orde... |
0802.2914 | Kjell Rosquist | Kjell Rosquist | Some Consequences of Gravitationally Induced Electromagnetic Effects in
Microphysics | Write-up of contribution to the 10th Italian-Korean Symposium on
Relativistic Astrophysics held in June 2007 | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss the relation between the gravitational and electromagnetic fields
as governed by the Einstein-Maxwell field equations. It is emphasized that the
tendency of the gravitational field to induce electromagnetic effects increases
as the size of the system goes down. In particular, the gravitational field,
accor... | [
{
"created": "Wed, 20 Feb 2008 18:05:07 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Feb 2008 21:30:05 GMT",
"version": "v2"
}
] | 2008-02-21 | [
[
"Rosquist",
"Kjell",
""
]
] | We discuss the relation between the gravitational and electromagnetic fields as governed by the Einstein-Maxwell field equations. It is emphasized that the tendency of the gravitational field to induce electromagnetic effects increases as the size of the system goes down. In particular, the gravitational field, accordi... |
2309.11536 | Bruno Arderucio Costa | Bruno Arderucio Costa and Yuri Bonder | Signature of Einstein-Cartan theory | null | Phys. Lett. B 849 (2024) 138431 | 10.1016/j.physletb.2023.138431 | null | gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the physical effects of torsion as predicted by the Einstein-Cartan
theory in the test particle approximation and the non-relativist limit. We
first present the corresponding non-relativistic Hamiltonian for a 2-spinor.
Then, we solve an idealized reflection and transmission problem for a
non-relativistic sp... | [
{
"created": "Wed, 20 Sep 2023 17:38:23 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Dec 2023 17:39:16 GMT",
"version": "v2"
}
] | 2024-01-05 | [
[
"Costa",
"Bruno Arderucio",
""
],
[
"Bonder",
"Yuri",
""
]
] | We study the physical effects of torsion as predicted by the Einstein-Cartan theory in the test particle approximation and the non-relativist limit. We first present the corresponding non-relativistic Hamiltonian for a 2-spinor. Then, we solve an idealized reflection and transmission problem for a non-relativistic spin... |
gr-qc/0702013 | Stefan Haesen | Stefan Haesen, Francisco Palomo and Alfonso Romero | A new method to construct spacetimes with a spacelike circle action | 18 pages | null | null | null | gr-qc | null | A new general procedure to construct realistic spacetimes is introduced. It
is based on the null congruence on a time-oriented Lorentzian manifold
associated to a certain timelike vector field. As an application, new examples
of stably causal Petrov type D spacetimes which obey the timelike convergence
condition and ... | [
{
"created": "Fri, 2 Feb 2007 09:10:23 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Haesen",
"Stefan",
""
],
[
"Palomo",
"Francisco",
""
],
[
"Romero",
"Alfonso",
""
]
] | A new general procedure to construct realistic spacetimes is introduced. It is based on the null congruence on a time-oriented Lorentzian manifold associated to a certain timelike vector field. As an application, new examples of stably causal Petrov type D spacetimes which obey the timelike convergence condition and wh... |
0909.1061 | Mike Stannett | Mike Stannett | Modelling Quantum Theoretical Trajectories within Geometric Relativistic
Theories | 14 pages. Presented at "Mathematics, Physics and Philosophy in the
Interpretations of Relativity Theory" (PIRT), 4-6 Septmber 2009, Budapest,
Hungary | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Andreka and her colleagues have described various geometrically inspired
first-order theories of special and general relativity, while Szekely's PhD
dissertation focuses on an intermediate logic of accelerated observers. In this
paper we will attempt to incorporate a model of quantum theoretical
trajectories that can... | [
{
"created": "Sat, 5 Sep 2009 22:51:25 GMT",
"version": "v1"
}
] | 2009-09-08 | [
[
"Stannett",
"Mike",
""
]
] | Andreka and her colleagues have described various geometrically inspired first-order theories of special and general relativity, while Szekely's PhD dissertation focuses on an intermediate logic of accelerated observers. In this paper we will attempt to incorporate a model of quantum theoretical trajectories that can r... |
gr-qc/0307016 | Israel Quiros | Olga Arias, Tame Gonzalez, Yoelsy Leyva and Israel Quiros | Exact Scaling Solutions in Normal and Brans-Dicke Models of Dark Energy | 17 pages, 5 eps figures. This is a published version that comprises
(and extends) the material in papers gr-qc/0212006 and gr-qc/0210097 | Class.Quant.Grav.20:2563-2578,2003 | 10.1088/0264-9381/20/13/308 | null | gr-qc | null | A linear relationship between the Hubble expansion parameter and the time
derivative of the scalar field is explored in order to derive exact
cosmological, attractor-like solutions, both in Einstein's theory and in
Brans-Dicke gravity with two fluids: a background fluid of ordinary matter,
together with a self-intera... | [
{
"created": "Fri, 4 Jul 2003 01:26:11 GMT",
"version": "v1"
}
] | 2010-10-27 | [
[
"Arias",
"Olga",
""
],
[
"Gonzalez",
"Tame",
""
],
[
"Leyva",
"Yoelsy",
""
],
[
"Quiros",
"Israel",
""
]
] | A linear relationship between the Hubble expansion parameter and the time derivative of the scalar field is explored in order to derive exact cosmological, attractor-like solutions, both in Einstein's theory and in Brans-Dicke gravity with two fluids: a background fluid of ordinary matter, together with a self-interact... |
1104.0140 | Matteo Lulli Mr | F. Cianfrani, M. Lulli, G. Montani | Solution of the noncanonicity puzzle in General Relativity: a new
Hamiltonian formulation | Accepted for Publication in Physics Letters B. Major revisions in
Canonical Quantization section for operator ordering choice and in the
definition of 'gauged canonicity' for the classical analysis. 19 pages single
column | null | 10.1016/j.physletb.2012.03.053 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the transformation leading from Arnowitt, Deser, Misner (ADM)
Hamiltonian formulation of General Relativity (GR) to the $\Gamma\Gamma$ metric
Hamiltonian formulation derived from the Lagrangian density which was firstly
proposed by Einstein. We classify this transformation as gauged canonical -
i.e. canonica... | [
{
"created": "Fri, 1 Apr 2011 10:56:07 GMT",
"version": "v1"
},
{
"created": "Thu, 1 Sep 2011 09:52:15 GMT",
"version": "v2"
},
{
"created": "Wed, 21 Mar 2012 11:38:36 GMT",
"version": "v3"
}
] | 2015-05-27 | [
[
"Cianfrani",
"F.",
""
],
[
"Lulli",
"M.",
""
],
[
"Montani",
"G.",
""
]
] | We study the transformation leading from Arnowitt, Deser, Misner (ADM) Hamiltonian formulation of General Relativity (GR) to the $\Gamma\Gamma$ metric Hamiltonian formulation derived from the Lagrangian density which was firstly proposed by Einstein. We classify this transformation as gauged canonical - i.e. canonical ... |
0807.3176 | Felix M. Lev | Felix Lev | De Sitter Invariance and a Possible Mechanism of Gravity | Latex, 113 pages, no figures | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It is believed that gravity will be explained in the framework of the
existing quantum theory when one succeeds in eliminating divergencies at large
momenta or small distances (although the phenomenon of gravity has been
observed only at nonrelativistic momenta and large distances). We consider a
quantum-mechanical d... | [
{
"created": "Sun, 20 Jul 2008 19:24:38 GMT",
"version": "v1"
}
] | 2008-07-28 | [
[
"Lev",
"Felix",
""
]
] | It is believed that gravity will be explained in the framework of the existing quantum theory when one succeeds in eliminating divergencies at large momenta or small distances (although the phenomenon of gravity has been observed only at nonrelativistic momenta and large distances). We consider a quantum-mechanical des... |
1710.07135 | Alexei Deriglazov A | Alexei A. Deriglazov and Walberto Guzm\'an Ram\'irez | Recent progress on the description of relativistic spin: vector model of
spinning particle and rotating body with gravimagnetic moment in General
Relativity | Invited review article for the Journal "Advances in Mathematical
Physics". Based on the recent works: arXiv:1312.6247, arXiv:1406.6715,
arXiv:1409.4756, arXiv:1509.05357, arXiv:1511.00645, arXiv:1609.00043. 61
pages, 3 figures | Advances in Mathematical Physics, Volume 2017 (2017), Article ID
7397159, 49 pages | 10.1155/2017/7397159 | null | gr-qc astro-ph.SR hep-th math-ph math.MP quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review the recent results on development of vector models of spin and
apply them to study the influence of spin-field interaction on the trajectory
and precession of a spinning particle in external gravitational and
electromagnetic fields. The formalism is developed starting from the Lagrangian
variational problem... | [
{
"created": "Thu, 19 Oct 2017 13:32:20 GMT",
"version": "v1"
}
] | 2017-10-23 | [
[
"Deriglazov",
"Alexei A.",
""
],
[
"Ramírez",
"Walberto Guzmán",
""
]
] | We review the recent results on development of vector models of spin and apply them to study the influence of spin-field interaction on the trajectory and precession of a spinning particle in external gravitational and electromagnetic fields. The formalism is developed starting from the Lagrangian variational problem, ... |
1903.01488 | Jorge Delgado B.S. | Jorge F. M. Delgado, Carlos A. R. Herdeiro, Eugen Radu | Kerr black holes with synchronised scalar hair and higher azimuthal
harmonic index | 13 pages, 13 figures | null | 10.1016/j.physletb.2019.04.009 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Kerr black holes with synchronised scalar hair and azimuthal harmonic index
$m>1$ are constructed and studied. The corresponding domain of existence has a
broader frequency range than the fundamental $m=1$ family; moreover, larger ADM
masses, $M$ and angular momenta $J$ are allowed. Amongst other salient
features, no... | [
{
"created": "Mon, 4 Mar 2019 19:05:00 GMT",
"version": "v1"
}
] | 2019-04-10 | [
[
"Delgado",
"Jorge F. M.",
""
],
[
"Herdeiro",
"Carlos A. R.",
""
],
[
"Radu",
"Eugen",
""
]
] | Kerr black holes with synchronised scalar hair and azimuthal harmonic index $m>1$ are constructed and studied. The corresponding domain of existence has a broader frequency range than the fundamental $m=1$ family; moreover, larger ADM masses, $M$ and angular momenta $J$ are allowed. Amongst other salient features, non-... |
1505.01310 | Vladimir Belinski | Vladimir A. Belinski | On the Supergravitational Solitons | null | null | null | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The extention of the integrable ansatz of pure Einstein gravity to
supergravity is completed. The procedure of construction the exact
supergravitational solitonic solutions is described.
| [
{
"created": "Wed, 6 May 2015 10:32:05 GMT",
"version": "v1"
}
] | 2015-05-07 | [
[
"Belinski",
"Vladimir A.",
""
]
] | The extention of the integrable ansatz of pure Einstein gravity to supergravity is completed. The procedure of construction the exact supergravitational solitonic solutions is described. |
gr-qc/0602049 | Alcides Garat | Alcides Garat | Tetrads in Yang-Mills geometrodynamics | This new version has a new abstract and the introduction has been
modified. There is also a new section, applications. This new section has two
subsections: Gauge invariants and Diagonalization of the stress-energy
tensor. The conclusion section has also been substantially modified. There is
a new appendix | Grav.Cosmol. 20 (2014) no.2, 116-126 | 10.1134/S0202289314020054 | null | gr-qc hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new set of tetrads is introduced within the framework of SU(2) X U(1)
Yang-Mills field theories in four dimensional Lorentz curved spacetimes. Each
one of these tetrads diagonalizes separately and explicitly each term of the
Yang-Mills stress-energy tensor. Therefore, three pairs of planes also known as
blades, can... | [
{
"created": "Mon, 13 Feb 2006 20:12:42 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Jun 2012 13:06:19 GMT",
"version": "v2"
}
] | 2019-08-22 | [
[
"Garat",
"Alcides",
""
]
] | A new set of tetrads is introduced within the framework of SU(2) X U(1) Yang-Mills field theories in four dimensional Lorentz curved spacetimes. Each one of these tetrads diagonalizes separately and explicitly each term of the Yang-Mills stress-energy tensor. Therefore, three pairs of planes also known as blades, can b... |
2203.09976 | Lissa de Souza Campos | Lissa de Souza Campos | Probing thermal effects on static spacetimes with Unruh-DeWitt detectors | PhD thesis submitted to the Graduate School of Physics at the
University of Pavia | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the lack of a full-fledged theory of quantum gravity, I consider free,
scalar, quantum fields on curved spacetimes to gain insight into the
interaction between quantum and gravitational phenomena. I employ the
Unruh-DeWitt detector approach to probe thermal, quantum effects on static,
non-globally hyperbolic space... | [
{
"created": "Fri, 18 Mar 2022 14:09:37 GMT",
"version": "v1"
}
] | 2022-03-21 | [
[
"Campos",
"Lissa de Souza",
""
]
] | In the lack of a full-fledged theory of quantum gravity, I consider free, scalar, quantum fields on curved spacetimes to gain insight into the interaction between quantum and gravitational phenomena. I employ the Unruh-DeWitt detector approach to probe thermal, quantum effects on static, non-globally hyperbolic spaceti... |
1409.0105 | Flavio Mercati | Flavio Mercati | A Shape Dynamics Tutorial | v2.0 (greatly extended and updated), 133 pages, two columns in
landscape format, for optimal reading on a computer screen or on a
short-sided binding printout | null | null | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Shape Dynamics (SD) is a new theory of gravity that is based on fewer and
more fundamental first principles than General Relativity (GR). The most
important feature of SD is the replacement of GR's relativity of simultaneity
with a more tractable gauge symmetry, namely invariance under spatial conformal
transformatio... | [
{
"created": "Sat, 30 Aug 2014 11:58:29 GMT",
"version": "v1"
},
{
"created": "Mon, 29 May 2017 08:33:38 GMT",
"version": "v2"
}
] | 2017-05-30 | [
[
"Mercati",
"Flavio",
""
]
] | Shape Dynamics (SD) is a new theory of gravity that is based on fewer and more fundamental first principles than General Relativity (GR). The most important feature of SD is the replacement of GR's relativity of simultaneity with a more tractable gauge symmetry, namely invariance under spatial conformal transformations... |
1809.03436 | Lu\'is Pedro Moura Pena Pires | Luis Pires | The initial value formulation of the $\lambda$-R model | 29 pages, 6 figures | null | 10.1063/5.0027346 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We apply the conformal method to solve the initial value formulation of
general relativity to the $\lambda$-R model, a minimal, anisotropic
modification of general relativity with a preferred foliation and two local
degrees of freedom. We obtain a generalised Lichnerowicz-York equation for the
conformal factor of the... | [
{
"created": "Mon, 10 Sep 2018 16:25:18 GMT",
"version": "v1"
}
] | 2024-06-19 | [
[
"Pires",
"Luis",
""
]
] | We apply the conformal method to solve the initial value formulation of general relativity to the $\lambda$-R model, a minimal, anisotropic modification of general relativity with a preferred foliation and two local degrees of freedom. We obtain a generalised Lichnerowicz-York equation for the conformal factor of the m... |
gr-qc/0609087 | Wolfgang Tichy | Wolfgang Tichy | Black hole evolution with the BSSN system by pseudo-spectral methods | 10 pages, 9 figures | Phys.Rev.D74:084005,2006 | 10.1103/PhysRevD.74.084005 | null | gr-qc | null | We present a new pseudo-spectral code for the simulation of evolution systems
that are second order in space. We test this code by evolving a non-linear
scalar wave equation. These non-linear waves can be stably evolved using very
simple constant or radiative boundary conditions, which we show to be
well-posed in the... | [
{
"created": "Wed, 20 Sep 2006 19:05:05 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Tichy",
"Wolfgang",
""
]
] | We present a new pseudo-spectral code for the simulation of evolution systems that are second order in space. We test this code by evolving a non-linear scalar wave equation. These non-linear waves can be stably evolved using very simple constant or radiative boundary conditions, which we show to be well-posed in the s... |
1305.5378 | Farhad Darabi | F. Darabi | Acceleration of the universe in matter dominant era by conformal
symmetry breaking | 13 pages. Int. J. Theor. Phys, published online (2013) | Int. J. Theor. Phys. 53, 881, (2014) | 10.1007/s10773-013-1877-8 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce a scenario in which the breakdown of conformal symmetry is
responsible for the acceleration of universe in the matter dominant era. In
this regard, we consider a self interacting scalar field non-minimally coupled
to the Ricci scalar and the trace of energy-momentum tensor. For a traceless
energy-momentu... | [
{
"created": "Thu, 23 May 2013 11:01:54 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Nov 2013 07:07:32 GMT",
"version": "v2"
}
] | 2014-01-28 | [
[
"Darabi",
"F.",
""
]
] | We introduce a scenario in which the breakdown of conformal symmetry is responsible for the acceleration of universe in the matter dominant era. In this regard, we consider a self interacting scalar field non-minimally coupled to the Ricci scalar and the trace of energy-momentum tensor. For a traceless energy-momentum ... |
gr-qc/9508045 | null | N. Nakazawa | Lattice Quantum Gravity from Stochastic 3-Geometries | Latex 13 pages, some references are added | null | null | NBI-HE-95-27 | gr-qc | null | I propose the Langevin equation for 3-geometries in the Ashtekar's formalism
to describe 4D Euclidean quantum gravity, in the sense that the corresponding
Fokker-Planck hamiltonian recovers the hamiltonian in 4D quantum gravity
exactly. The stochastic time corresponds to the Euclidean time in the gauge,
N=1 and $N^i=... | [
{
"created": "Mon, 21 Aug 1995 00:21:14 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Sep 1995 01:44:17 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Nakazawa",
"N.",
""
]
] | I propose the Langevin equation for 3-geometries in the Ashtekar's formalism to describe 4D Euclidean quantum gravity, in the sense that the corresponding Fokker-Planck hamiltonian recovers the hamiltonian in 4D quantum gravity exactly. The stochastic time corresponds to the Euclidean time in the gauge, N=1 and $N^i=0$... |
gr-qc/9710135 | Roy Maartens | Roy Maartens, Megan Govender, Sunil Maharaj | Inflation driven by causal heat flux | Latex 5 pages; to appear Gen. Rel. Grav | Gen.Rel.Grav. 31 (1999) 815-819 | 10.1023/A:1026678019497 | null | gr-qc | null | We find a simple inflationary solution in an inhomogeneous spacetime with
heat flux. The heat flux obeys a causal transport equation, and counteracts the
inflationary decrease of energy density. At late times, the heat flux tends to
zero and the fluid approaches the equation of state $p=-\rho$.
| [
{
"created": "Fri, 31 Oct 1997 09:00:12 GMT",
"version": "v1"
}
] | 2015-06-25 | [
[
"Maartens",
"Roy",
""
],
[
"Govender",
"Megan",
""
],
[
"Maharaj",
"Sunil",
""
]
] | We find a simple inflationary solution in an inhomogeneous spacetime with heat flux. The heat flux obeys a causal transport equation, and counteracts the inflationary decrease of energy density. At late times, the heat flux tends to zero and the fluid approaches the equation of state $p=-\rho$. |
0906.4918 | Thomas Schucker | Thomas Schucker | Ashtekar's variables without spin | 5 pages, unpublished paper from 1988 | null | null | HD-THEP-88-12 | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Ashtekar's variables are shown to arise naturally from a 3+1 split of general
relativity in the Einstein-Cartan formulation. Thereby spinors are exorcised.
| [
{
"created": "Fri, 26 Jun 2009 12:47:25 GMT",
"version": "v1"
}
] | 2009-06-29 | [
[
"Schucker",
"Thomas",
""
]
] | Ashtekar's variables are shown to arise naturally from a 3+1 split of general relativity in the Einstein-Cartan formulation. Thereby spinors are exorcised. |
gr-qc/0012009 | Stoytcho Yazadjiev | Stoytcho S.Yazadjiev (Sofia University) | Distorted charged dilaton black holes | 14 pages, latex; v2 typos corrected, references added | Class.Quant.Grav. 18 (2001) 2105-2116 | 10.1088/0264-9381/18/11/308 | null | gr-qc astro-ph hep-th | null | We construct exact static, axisymmetric solutions of Einstein-Maxwell-dilaton
gravity presenting distorted charged dilaton black holes. The thermodynamics of
such distorted black holes is also discussed.
| [
{
"created": "Sun, 3 Dec 2000 18:50:09 GMT",
"version": "v1"
},
{
"created": "Wed, 30 May 2001 13:58:34 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Yazadjiev",
"Stoytcho S.",
"",
"Sofia University"
]
] | We construct exact static, axisymmetric solutions of Einstein-Maxwell-dilaton gravity presenting distorted charged dilaton black holes. The thermodynamics of such distorted black holes is also discussed. |
gr-qc/0109069 | Sayan Kar | Naresh Dadhich (IUCAA), Sayan Kar (IITKgp), Sailajananda Mukherji
(NBU), Matt Visser (Washington) | R=0 spacetimes and self-dual Lorentzian wormholes | 8 pages, RevTex two column, one figure | Phys.Rev.D65:064004,2002 | 10.1103/PhysRevD.65.064004 | null | gr-qc | null | A two-parameter family of spherically symmetric, static Lorentzian wormholes
is obtained as the general solution of the equation $\rho=\rho_t=0$, where
$\rho = T_{ij} u^iu^j$, $\rho_t = (T_{ij} - {1\over2} T g_{ij}) u^iu^j$, and
$u^i u_i =- 1$. This equation characterizes a class of spacetimes which are
``self dual''... | [
{
"created": "Wed, 19 Sep 2001 17:00:02 GMT",
"version": "v1"
}
] | 2010-11-19 | [
[
"Dadhich",
"Naresh",
"",
"IUCAA"
],
[
"Kar",
"Sayan",
"",
"IITKgp"
],
[
"Mukherji",
"Sailajananda",
"",
"NBU"
],
[
"Visser",
"Matt",
"",
"Washington"
]
] | A two-parameter family of spherically symmetric, static Lorentzian wormholes is obtained as the general solution of the equation $\rho=\rho_t=0$, where $\rho = T_{ij} u^iu^j$, $\rho_t = (T_{ij} - {1\over2} T g_{ij}) u^iu^j$, and $u^i u_i =- 1$. This equation characterizes a class of spacetimes which are ``self dual'' (... |
gr-qc/0403046 | Edward Daw | E. J. Daw (1 and 2), J. A. Giaime (1), D. Lormand (3), M. Lubinski
(4), J. Zweizig (5) ((1) Louisiana State University, U.S.A. (2) University of
Sheffield, U.K. (3) LIGO Livingston Observatory, U.S.A. (4) LIGO Hanford
Observatory, U.S.A. (5) California Institute of Technology, U.S.A.) | Long term study of the seismic environment at LIGO | To be published in Classical and Quantum Gravity. 24 pages, 15
figures | Class.Quant.Grav. 21 (2004) 2255-2273 | 10.1088/0264-9381/21/9/003 | null | gr-qc | null | The LIGO experiment aims to detect and study gravitational waves using ground
based laser interferometry. A critical factor to the performance of the
interferometers, and a major consideration in the design of possible future
upgrades, is isolation of the interferometer optics from seismic noise. We
present the resul... | [
{
"created": "Thu, 11 Mar 2004 09:31:27 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Daw",
"E. J.",
"",
"1 and 2"
],
[
"Giaime",
"J. A.",
""
],
[
"Lormand",
"D.",
""
],
[
"Lubinski",
"M.",
""
],
[
"Zweizig",
"J.",
""
]
] | The LIGO experiment aims to detect and study gravitational waves using ground based laser interferometry. A critical factor to the performance of the interferometers, and a major consideration in the design of possible future upgrades, is isolation of the interferometer optics from seismic noise. We present the results... |
0807.1145 | Roberto A. Sussman | Roberto A. Sussman | On spatial volume averaging in Lema\^{\i}tre--Tolman--Bondi dust models.
Part I: back reaction, spacial curvature and binding energy | This replacement corrects an important error of the previous version.
The paper (part I) now deals only with back--reaction, spatial curvature and
other issues, leaving "effective acceleration" for a follow up article (part
II). No further modifications will be made. 40 pages in IOP LaTeX format | null | null | null | gr-qc astro-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We provide a comprehensive analytic study (rigorous and qualitative) of the
conditions for the existence of a a positive kinematic back reaction term
$\QQ>0$, in the context of Buchert's scalar averaging formalism applied to
spherically symmetric Lema\^itre-Tolman-Bondi (LTB) dust solutions in which
averaging domains... | [
{
"created": "Tue, 8 Jul 2008 00:03:48 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Aug 2008 08:52:23 GMT",
"version": "v2"
},
{
"created": "Sat, 10 Jan 2009 07:14:26 GMT",
"version": "v3"
},
{
"created": "Mon, 21 Dec 2009 02:30:29 GMT",
"version": "v4"
}
] | 2009-12-21 | [
[
"Sussman",
"Roberto A.",
""
]
] | We provide a comprehensive analytic study (rigorous and qualitative) of the conditions for the existence of a a positive kinematic back reaction term $\QQ>0$, in the context of Buchert's scalar averaging formalism applied to spherically symmetric Lema\^itre-Tolman-Bondi (LTB) dust solutions in which averaging domains a... |
2107.00463 | Mostafa Bousder Mr | M. Bousder, K. El Bourakadi and M.Bennai | Charged 4D Einstein-Gauss-Bonnet Black Hole: Vacuum solutions, Cauchy
Horizon, Thermodynamics | 16 pages, 4 figures | Physics of the Dark Universe 32C (2021) 100839 | 10.1016/j.dark.2021.100839 | null | gr-qc astro-ph.HE | http://creativecommons.org/licenses/by/4.0/ | In this paper, we investigate the four-dimensional Einstein-Gauss-Bonnet
black hole. The thermodynamic variables and equations of state of black holes
are obtained in terms of a new parameterization. We discuss a formulation of
the van der Waals equation by studying the effects of the temperature on P-V
isotherms. We... | [
{
"created": "Wed, 30 Jun 2021 10:38:06 GMT",
"version": "v1"
}
] | 2021-07-02 | [
[
"Bousder",
"M.",
""
],
[
"Bourakadi",
"K. El",
""
],
[
"Bennai",
"M.",
""
]
] | In this paper, we investigate the four-dimensional Einstein-Gauss-Bonnet black hole. The thermodynamic variables and equations of state of black holes are obtained in terms of a new parameterization. We discuss a formulation of the van der Waals equation by studying the effects of the temperature on P-V isotherms. We s... |
1509.00232 | Vardarajan Suneeta | Dhanya S. Menon, Vardarajan Suneeta | Necessary conditions for an AdS-type instability | 31 pages, version to appear in Physical Review D | Phys. Rev. D 93, 024044 (2016) | 10.1103/PhysRevD.93.024044 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we analyze the necessary conditions for a nonlinear AdS-type
instability in the gravity-scalar field system. In particular, we discuss the
necessary conditions for a cascade of energy to higher modes by applying
results in KAM theory. Our analytical framework explains numerical observations
of instabili... | [
{
"created": "Tue, 1 Sep 2015 11:23:15 GMT",
"version": "v1"
},
{
"created": "Sun, 6 Sep 2015 09:42:36 GMT",
"version": "v2"
},
{
"created": "Mon, 2 Nov 2015 04:42:15 GMT",
"version": "v3"
},
{
"created": "Tue, 29 Dec 2015 06:20:25 GMT",
"version": "v4"
}
] | 2016-02-03 | [
[
"Menon",
"Dhanya S.",
""
],
[
"Suneeta",
"Vardarajan",
""
]
] | In this work, we analyze the necessary conditions for a nonlinear AdS-type instability in the gravity-scalar field system. In particular, we discuss the necessary conditions for a cascade of energy to higher modes by applying results in KAM theory. Our analytical framework explains numerical observations of instability... |
1308.0896 | Yury Eroshenko | V.I. Dokuchaev and Yu.N. Eroshenko | Non-orientable wormholes as portals to the mirror world | 7 pages, 1 figure | Phys. Rev. D 90, 024056 (2014) | 10.1103/PhysRevD.90.024056 | null | gr-qc astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We examine the compatibility of the mirror matter concept with the
non-orientable wormholes. If any particle (or classical object) is traversing
through the non-orientable wormhole, it turns into a corresponding mirror
particle and vice versa. The critical sonic point in the hydrodynamical flow of
the perfect fluid i... | [
{
"created": "Mon, 5 Aug 2013 07:05:49 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Mar 2014 08:28:24 GMT",
"version": "v2"
},
{
"created": "Fri, 1 Aug 2014 12:32:08 GMT",
"version": "v3"
}
] | 2014-08-04 | [
[
"Dokuchaev",
"V. I.",
""
],
[
"Eroshenko",
"Yu. N.",
""
]
] | We examine the compatibility of the mirror matter concept with the non-orientable wormholes. If any particle (or classical object) is traversing through the non-orientable wormhole, it turns into a corresponding mirror particle and vice versa. The critical sonic point in the hydrodynamical flow of the perfect fluid is ... |
2402.10459 | Jin Saito | Jin Saito, Zhibang Yao, Tsutomu Kobayashi | PPN meets EFT of dark energy: Post-Newtonian approximation in
higher-order scalar-tensor theories | 18 pages, 2 figures | null | null | RUP-24-3 | gr-qc astro-ph.CO | http://creativecommons.org/licenses/by/4.0/ | We study the post-Newtonian limit of higher-order scalar-tensor theories that
are degenerate in the unitary gauge. They can be conveniently described by the
effective field theory (EFT) of dark energy. We determine all the parametrized
post-Newtonian (PPN) parameters in terms of the EFT of dark energy parameters.
Exp... | [
{
"created": "Fri, 16 Feb 2024 05:36:46 GMT",
"version": "v1"
}
] | 2024-02-19 | [
[
"Saito",
"Jin",
""
],
[
"Yao",
"Zhibang",
""
],
[
"Kobayashi",
"Tsutomu",
""
]
] | We study the post-Newtonian limit of higher-order scalar-tensor theories that are degenerate in the unitary gauge. They can be conveniently described by the effective field theory (EFT) of dark energy. We determine all the parametrized post-Newtonian (PPN) parameters in terms of the EFT of dark energy parameters. Exper... |
gr-qc/0409069 | Paola Zizzi | Paola A. Zizzi | A Minimal Model for Quantum Gravity | 11 pages, 4 figures, Contributed paper at DICE 2004, 1-4 September
2004, Piombino, Italy minor changes, misprints corrected | Mod.Phys.Lett. A20 (2005) 645-653 | 10.1142/S021773230501683X | null | gr-qc hep-th quant-ph | null | We argue that the model of a quantum computer with N qubits on a quantum
space background, which is a fuzzy sphere with n=2^N elementary cells, can be
viewed as the minimal model for Quantum Gravity. In fact, it is discrete, has
no free parameters, is Lorentz invariant, naturally realizes the Holographic
Principle, a... | [
{
"created": "Sat, 18 Sep 2004 03:45:19 GMT",
"version": "v1"
},
{
"created": "Sat, 29 Jan 2005 18:40:31 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Zizzi",
"Paola A.",
""
]
] | We argue that the model of a quantum computer with N qubits on a quantum space background, which is a fuzzy sphere with n=2^N elementary cells, can be viewed as the minimal model for Quantum Gravity. In fact, it is discrete, has no free parameters, is Lorentz invariant, naturally realizes the Holographic Principle, and... |
1406.7555 | Wei Lu | Wei Lu | Modified Einstein-Cartan Gravity and its Implications for Cosmology | 11 pages, typos corrected, references added | null | null | null | gr-qc astro-ph.CO hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a modification of Einstein-Cartan gravity equations. The modified
cosmology departs from the standard model of cosmology for small Hubble
parameter. A characteristic Hubble scale h0, which is intrinsically related to
cosmological constant, marks the boundary between the validity domains of the
standard mod... | [
{
"created": "Sun, 29 Jun 2014 20:10:41 GMT",
"version": "v1"
},
{
"created": "Thu, 3 Jul 2014 23:22:49 GMT",
"version": "v2"
}
] | 2015-07-21 | [
[
"Lu",
"Wei",
""
]
] | We propose a modification of Einstein-Cartan gravity equations. The modified cosmology departs from the standard model of cosmology for small Hubble parameter. A characteristic Hubble scale h0, which is intrinsically related to cosmological constant, marks the boundary between the validity domains of the standard model... |
1910.04219 | Ivica Smoli\'c | Ana Bokuli\'c, Ivica Smoli\'c | Schwarzschild spacetime immersed in test nonlinear electromagnetic
fields | 18 pages, 2 figures; slightly revised, published version | Class. Quantum Grav. 37 (2020) 055004 | 10.1088/1361-6382/ab6390 | ZTF-EP-19-03 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Kerr black hole immersed in test, asymptotically homogeneous magnetic field,
aligned along the symmetry axis, is described by Wald's solution. We show how
the static case of this solution may be generalized for nonlinear
electromagnetic models via perturbative approach. Using this technique we find
the lowest order c... | [
{
"created": "Wed, 9 Oct 2019 19:45:25 GMT",
"version": "v1"
},
{
"created": "Fri, 7 Feb 2020 23:56:39 GMT",
"version": "v2"
}
] | 2020-02-11 | [
[
"Bokulić",
"Ana",
""
],
[
"Smolić",
"Ivica",
""
]
] | Kerr black hole immersed in test, asymptotically homogeneous magnetic field, aligned along the symmetry axis, is described by Wald's solution. We show how the static case of this solution may be generalized for nonlinear electromagnetic models via perturbative approach. Using this technique we find the lowest order cor... |
1307.0482 | Marcos Brum | Marcos Brum and Klaus Fredenhagen | "Vacuum-like" Hadamard states for quantum fields on curved spacetimes | Accepted for publication in CQG. Added Theorem 3.0.1 proving the
purity of the states, added Theorem A.1 proving the essential
self-adjointness of the elliptic operator. References were also added | null | 10.1088/0264-9381/31/2/025024 | null | gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a modification of the recently proposed Sorkin-Johnston states for
scalar free quantum fields on a class of globally hyperbolic spacetimes
possessing compact Cauchy hypersurfaces. The modification relies on a smooth
cutoff of the commutator function and leads always to Hadamard states, in
contrast to the o... | [
{
"created": "Mon, 1 Jul 2013 18:58:36 GMT",
"version": "v1"
},
{
"created": "Fri, 22 Nov 2013 16:09:06 GMT",
"version": "v2"
}
] | 2013-12-23 | [
[
"Brum",
"Marcos",
""
],
[
"Fredenhagen",
"Klaus",
""
]
] | We present a modification of the recently proposed Sorkin-Johnston states for scalar free quantum fields on a class of globally hyperbolic spacetimes possessing compact Cauchy hypersurfaces. The modification relies on a smooth cutoff of the commutator function and leads always to Hadamard states, in contrast to the ori... |
1601.06772 | Igor Nikitin | Igor Nikitin | Tachyonic models of dark matter | null | null | null | null | gr-qc astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a spherically symmetric stationary problem in General Relativity,
including a black hole, inflow of normal and tachyonic matter and outflow of
tachyonic matter. Computations in a weak field limit show that the resulting
concentration of matter around the black hole leads to gravitational effects
equivalen... | [
{
"created": "Sat, 23 Jan 2016 14:17:24 GMT",
"version": "v1"
}
] | 2016-01-27 | [
[
"Nikitin",
"Igor",
""
]
] | We consider a spherically symmetric stationary problem in General Relativity, including a black hole, inflow of normal and tachyonic matter and outflow of tachyonic matter. Computations in a weak field limit show that the resulting concentration of matter around the black hole leads to gravitational effects equivalent ... |
2008.04003 | Keisuke Nakashi | Keisuke Nakashi and Masashi Kimura | Towards rotating non-circular black holes in string-inspired gravity | 23 pages, v2: minor revisions, accepted for publication in Phys. Rev.
D | Phys. Rev. D 102, 084021 (2020) | 10.1103/PhysRevD.102.084021 | RUP-20-28 | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study stationary slowly rotating black holes, up to quadratic order in the
spin angular momentum, in dynamical Chern-Simons gravity and shift symmetric
Einstein scalar Gauss-Bonnet gravity, as models of string-inspired gravities.
These gravity theories modify general relativity by introducing dynamical
scalar fiel... | [
{
"created": "Mon, 10 Aug 2020 10:08:08 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Sep 2020 06:17:42 GMT",
"version": "v2"
}
] | 2020-10-14 | [
[
"Nakashi",
"Keisuke",
""
],
[
"Kimura",
"Masashi",
""
]
] | We study stationary slowly rotating black holes, up to quadratic order in the spin angular momentum, in dynamical Chern-Simons gravity and shift symmetric Einstein scalar Gauss-Bonnet gravity, as models of string-inspired gravities. These gravity theories modify general relativity by introducing dynamical scalar fields... |
gr-qc/0003077 | null | Bahram Mashhoon and Dietmar S. Theiss | Relativistic Effects in the Motion of the Moon | LaTeX file, no figures, 13 pages, to appear in: 'Testing relativistic
gravity in space', edited by C. Laemmerzahl, C.W.F. Everitt and F.W. Hehl
(Springer, Berlin 2000) | Lect.Notes Phys. 562 (2001) 310-316 | 10.1007/3-540-40988-2_15 | null | gr-qc | null | The main general relativistic effects in the motion of the Moon are briefly
reviewed. The possibility of detection of the solar gravitomagnetic
contributions to the mean motions of the lunar node and perigee is discussed.
| [
{
"created": "Mon, 20 Mar 2000 05:22:09 GMT",
"version": "v1"
},
{
"created": "Wed, 22 Mar 2000 00:17:53 GMT",
"version": "v2"
}
] | 2016-12-07 | [
[
"Mashhoon",
"Bahram",
""
],
[
"Theiss",
"Dietmar S.",
""
]
] | The main general relativistic effects in the motion of the Moon are briefly reviewed. The possibility of detection of the solar gravitomagnetic contributions to the mean motions of the lunar node and perigee is discussed. |
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